102261587237 has 2 divisors, whose sum is σ = 102261587238. Its totient is φ = 102261587236.

The previous prime is 102261587179. The next prime is 102261587251. The reversal of 102261587237 is 732785162201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96448134721 + 5813452516 = 310561^2 + 76246^2 .

It is a cyclic number.

It is not a de Polignac number, because 102261587237 - 2²² = 102257392933 is a prime.

It is a super-2 number, since 2×102261587237² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102261587137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51130793618 + 51130793619.

It is an arithmetic number, because the mean of its divisors is an integer number (51130793619).

Almost surely, 2^102261587237 is an apocalyptic number.

It is an amenable number.

102261587237 is a deficient number, since it is larger than the sum of its proper divisors (1).

102261587237 is an equidigital number, since it uses as much as digits as its factorization.

102261587237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 102261587237 in words is "one hundred two billion, two hundred sixty-one million, five hundred eighty-seven thousand, two hundred thirty-seven".