102661265 has 16 divisors (see below), whose sum is σ = 143451648. Its totient is φ = 69066816.

The previous prime is 102661241. The next prime is 102661297. The reversal of 102661265 is 562166201.

It is not a de Polignac number, because 102661265 - 2¹⁴ = 102644881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25817 + ... + 29526.

It is an arithmetic number, because the mean of its divisors is an integer number (8965728).

Almost surely, 2^102661265 is an apocalyptic number.

It is an amenable number.

102661265 is a deficient number, since it is larger than the sum of its proper divisors (40790383).

102661265 is an equidigital number, since it uses as much as digits as its factorization.

102661265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55408.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 102661265 is about 10132.1895461939. The cubic root of 102661265 is about 468.2403874376.

The spelling of 102661265 in words is "one hundred two million, six hundred sixty-one thousand, two hundred sixty-five".