9421254631 has 2 divisors, whose sum is σ = 9421254632. Its totient is φ = 9421254630.

The previous prime is 9421254581. The next prime is 9421254637. The reversal of 9421254631 is 1364521249.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9421254631 - 2¹¹ = 9421252583 is a prime.

It is a super-2 number, since 2×9421254631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9421254637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4710627315 + 4710627316.

It is an arithmetic number, because the mean of its divisors is an integer number (4710627316).

Almost surely, 2^9421254631 is an apocalyptic number.

9421254631 is a deficient number, since it is larger than the sum of its proper divisors (1).

9421254631 is an equidigital number, since it uses as much as digits as its factorization.

9421254631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 9421254631 is about 97063.1476462617. The cubic root of 9421254631 is about 2112.0437682685.

The spelling of 9421254631 in words is "nine billion, four hundred twenty-one million, two hundred fifty-four thousand, six hundred thirty-one".