102162187 has 4 divisors (see below), whose sum is σ = 102332776. Its totient is φ = 101991600.

The previous prime is 102162173. The next prime is 102162199. The reversal of 102162187 is 781261201.

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

It is a cyclic number.

It is not a de Polignac number, because 102162187 - 2⁷ = 102162059 is a prime.

It is a super-2 number, since 2×102162187² = 20874224905245938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102165187) 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, 84393 + ... + 85594.

It is an arithmetic number, because the mean of its divisors is an integer number (25583194).

Almost surely, 2^102162187 is an apocalyptic number.

102162187 is a deficient number, since it is larger than the sum of its proper divisors (170589).

102162187 is an equidigital number, since it uses as much as digits as its factorization.

102162187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170588.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 102162187 is about 10107.5312020295. The cubic root of 102162187 is about 467.4803858052.

It can be divided in two parts, 10216 and 2187, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 102162187 in words is "one hundred two million, one hundred sixty-two thousand, one hundred eighty-seven".