102512146 has 16 divisors (see below), whose sum is σ = 170592480. Its totient is φ = 45806080.

The previous prime is 102512117. The next prime is 102512161. The reversal of 102512146 is 641215201.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38191 + ... + 40786.

It is an arithmetic number, because the mean of its divisors is an integer number (10662030).

Almost surely, 2^102512146 is an apocalyptic number.

102512146 is a deficient number, since it is larger than the sum of its proper divisors (68080334).

102512146 is a wasteful number, since it uses less digits than its factorization.

102512146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79049.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 102512146 is about 10124.8281960733. The cubic root of 102512146 is about 468.0135658522.

Adding to 102512146 its reverse (641215201), we get a palindrome (743727347).

The spelling of 102512146 in words is "one hundred two million, five hundred twelve thousand, one hundred forty-six".