1257314443 has 16 divisors (see below), whose sum is σ = 1576963584. Its totient is φ = 973848960.

The previous prime is 1257314411. The next prime is 1257314447. The reversal of 1257314443 is 3444137521.

It is not a de Polignac number, because 1257314443 - 2⁵ = 1257314411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1257314399 and 1257314408.

It is not an unprimeable number, because it can be changed into a prime (1257314447) 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, 36030 + ... + 61747.

It is an arithmetic number, because the mean of its divisors is an integer number (98560224).

Almost surely, 2^1257314443 is an apocalyptic number.

1257314443 is a deficient number, since it is larger than the sum of its proper divisors (319649141).

1257314443 is a wasteful number, since it uses less digits than its factorization.

1257314443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97962.

The product of its digits is 40320, while the sum is 34.

The square root of 1257314443 is about 35458.6300214771. The cubic root of 1257314443 is about 1079.3143919562.

The spelling of 1257314443 in words is "one billion, two hundred fifty-seven million, three hundred fourteen thousand, four hundred forty-three".