1457144473 has 4 divisors (see below), whose sum is σ = 1471571748. Its totient is φ = 1442717200.

The previous prime is 1457144453. The next prime is 1457144497. The reversal of 1457144473 is 3744417541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1101708864 + 355435609 = 33192^2 + 18853^2 .

It is a cyclic number.

It is not a de Polignac number, because 1457144473 - 2⁵ = 1457144441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1457144453) 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, 7213486 + ... + 7213687.

It is an arithmetic number, because the mean of its divisors is an integer number (367892937).

Almost surely, 2^1457144473 is an apocalyptic number.

It is an amenable number.

1457144473 is a deficient number, since it is larger than the sum of its proper divisors (14427275).

1457144473 is a wasteful number, since it uses less digits than its factorization.

1457144473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14427274.

The product of its digits is 188160, while the sum is 40.

The square root of 1457144473 is about 38172.5617819920. The cubic root of 1457144473 is about 1133.7071121123.

The spelling of 1457144473 in words is "one billion, four hundred fifty-seven million, one hundred forty-four thousand, four hundred seventy-three".