102427631 has 2 divisors, whose sum is σ = 102427632. Its totient is φ = 102427630.

The previous prime is 102427583. The next prime is 102427649. The reversal of 102427631 is 136724201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102427631 - 2¹⁰ = 102426607 is a prime.

It is a super-4 number, since 4×102427631⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 102427631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102426631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51213815 + 51213816.

It is an arithmetic number, because the mean of its divisors is an integer number (51213816).

Almost surely, 2^102427631 is an apocalyptic number.

102427631 is a deficient number, since it is larger than the sum of its proper divisors (1).

102427631 is an equidigital number, since it uses as much as digits as its factorization.

102427631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 102427631 is about 10120.6536844218. The cubic root of 102427631 is about 467.8849142954.

The spelling of 102427631 in words is "one hundred two million, four hundred twenty-seven thousand, six hundred thirty-one".