1251462431 has 2 divisors, whose sum is σ = 1251462432. Its totient is φ = 1251462430.

The previous prime is 1251462419. The next prime is 1251462437. The reversal of 1251462431 is 1342641521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1251462431 - 2²⁶ = 1184353567 is a prime.

It is a super-2 number, since 2×1251462431² = 3132316432408859522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1251462394 and 1251462403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1251462437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625731215 + 625731216.

It is an arithmetic number, because the mean of its divisors is an integer number (625731216).

Almost surely, 2^1251462431 is an apocalyptic number.

1251462431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1251462431 is an equidigital number, since it uses as much as digits as its factorization.

1251462431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 1251462431 is about 35376.0149112361. The cubic root of 1251462431 is about 1077.6372762368.

The spelling of 1251462431 in words is "one billion, two hundred fifty-one million, four hundred sixty-two thousand, four hundred thirty-one".