102764861 has 2 divisors, whose sum is σ = 102764862. Its totient is φ = 102764860.

The previous prime is 102764839. The next prime is 102764869. The reversal of 102764861 is 168467201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93973636 + 8791225 = 9694^2 + 2965^2 .

It is a cyclic number.

It is not a de Polignac number, because 102764861 - 2¹⁸ = 102502717 is a prime.

It is equal to p_5911577 and since 102764861 and 5911577 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102764869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51382430 + 51382431.

It is an arithmetic number, because the mean of its divisors is an integer number (51382431).

Almost surely, 2^102764861 is an apocalyptic number.

It is an amenable number.

102764861 is a deficient number, since it is larger than the sum of its proper divisors (1).

102764861 is an equidigital number, since it uses as much as digits as its factorization.

102764861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 102764861 is about 10137.3004789244. The cubic root of 102764861 is about 468.3978357339.

The spelling of 102764861 in words is "one hundred two million, seven hundred sixty-four thousand, eight hundred sixty-one".