102152690 has 8 divisors (see below), whose sum is σ = 183874860. Its totient is φ = 40861072.

The previous prime is 102152681. The next prime is 102152693. The reversal of 102152690 is 96251201.

It can be written as a sum of positive squares in 2 ways, for example, as 101344489 + 808201 = 10067^2 + 899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×102152690² = 20870344148472200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102152693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5107625 + ... + 5107644.

Almost surely, 2^102152690 is an apocalyptic number.

102152690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102152690 is a deficient number, since it is larger than the sum of its proper divisors (81722170).

102152690 is a wasteful number, since it uses less digits than its factorization.

102152690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215276.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 102152690 is about 10107.0613929074. The cubic root of 102152690 is about 467.4658996927.

The spelling of 102152690 in words is "one hundred two million, one hundred fifty-two thousand, six hundred ninety".