1461444253 has 16 divisors (see below), whose sum is σ = 1609597440. Its totient is φ = 1320883200.

The previous prime is 1461444251. The next prime is 1461444293. The reversal of 1461444253 is 3524441641.

It is a cyclic number.

It is not a de Polignac number, because 1461444253 - 2¹ = 1461444251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461444251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58453 + ... + 79621.

It is an arithmetic number, because the mean of its divisors is an integer number (100599840).

Almost surely, 2^1461444253 is an apocalyptic number.

It is an amenable number.

1461444253 is a deficient number, since it is larger than the sum of its proper divisors (148153187).

1461444253 is a wasteful number, since it uses less digits than its factorization.

1461444253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21348.

The product of its digits is 46080, while the sum is 34.

The square root of 1461444253 is about 38228.8405918882. The cubic root of 1461444253 is about 1134.8211412546.

Adding to 1461444253 its reverse (3524441641), we get a palindrome (4985885894).

The spelling of 1461444253 in words is "one billion, four hundred sixty-one million, four hundred forty-four thousand, two hundred fifty-three".