102631679 has 2 divisors, whose sum is σ = 102631680. Its totient is φ = 102631678.

The previous prime is 102631657. The next prime is 102631693. The reversal of 102631679 is 976136201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102631679 - 2¹² = 102627583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102631699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51315839 + 51315840.

It is an arithmetic number, because the mean of its divisors is an integer number (51315840).

Almost surely, 2^102631679 is an apocalyptic number.

102631679 is a deficient number, since it is larger than the sum of its proper divisors (1).

102631679 is an equidigital number, since it uses as much as digits as its factorization.

102631679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 102631679 is about 10130.7294406671. The cubic root of 102631679 is about 468.1954023074.

The spelling of 102631679 in words is "one hundred two million, six hundred thirty-one thousand, six hundred seventy-nine".