1457540313 has 4 divisors (see below), whose sum is σ = 1943387088. Its totient is φ = 971693540.

The previous prime is 1457540309. The next prime is 1457540321. The reversal of 1457540313 is 3130457541.

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.

It is a cyclic number.

It is not a de Polignac number, because 1457540313 - 2² = 1457540309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1457540303) 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, 242923383 + ... + 242923388.

It is an arithmetic number, because the mean of its divisors is an integer number (485846772).

Almost surely, 2^1457540313 is an apocalyptic number.

It is an amenable number.

1457540313 is a deficient number, since it is larger than the sum of its proper divisors (485846775).

1457540313 is an equidigital number, since it uses as much as digits as its factorization.

1457540313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485846774.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 1457540313 is about 38177.7463059306. The cubic root of 1457540313 is about 1133.8097617354.

Adding to 1457540313 its reverse (3130457541), we get a palindrome (4587997854).

The spelling of 1457540313 in words is "one billion, four hundred fifty-seven million, five hundred forty thousand, three hundred thirteen".