102472465 has 4 divisors (see below), whose sum is σ = 122966964. Its totient is φ = 81977968.

The previous prime is 102472451. The next prime is 102472493. The reversal of 102472465 is 564274201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76247824 + 26224641 = 8732^2 + 5121^2 .

It is a cyclic number.

It is not a de Polignac number, because 102472465 - 2¹³ = 102464273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10247242 + ... + 10247251.

It is an arithmetic number, because the mean of its divisors is an integer number (30741741).

Almost surely, 2^102472465 is an apocalyptic number.

It is an amenable number.

102472465 is a deficient number, since it is larger than the sum of its proper divisors (20494499).

102472465 is an equidigital number, since it uses as much as digits as its factorization.

102472465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20494498.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 102472465 is about 10122.8684175979. The cubic root of 102472465 is about 467.9531709176.

The spelling of 102472465 in words is "one hundred two million, four hundred seventy-two thousand, four hundred sixty-five".