1457444461 has 4 divisors (see below), whose sum is σ = 1589939424. Its totient is φ = 1324949500.

The previous prime is 1457444453. The next prime is 1457444551. The reversal of 1457444461 is 1644447541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1644447541 = 11 ⋅149495231.

It is a cyclic number.

It is not a de Polignac number, because 1457444461 - 2³ = 1457444453 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457444861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66247465 + ... + 66247486.

It is an arithmetic number, because the mean of its divisors is an integer number (397484856).

Almost surely, 2^1457444461 is an apocalyptic number.

1457444461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1457444461 is a deficient number, since it is larger than the sum of its proper divisors (132494963).

1457444461 is a wasteful number, since it uses less digits than its factorization.

1457444461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132494962.

The product of its digits is 215040, while the sum is 40.

The square root of 1457444461 is about 38176.4909466546. The cubic root of 1457444461 is about 1133.7849070047.

It can be divided in two parts, 14 and 57444461, that added together give a palindrome (57444475).

The spelling of 1457444461 in words is "one billion, four hundred fifty-seven million, four hundred forty-four thousand, four hundred sixty-one".