102642634 has 16 divisors (see below), whose sum is σ = 166814208. Its totient is φ = 47178432.

The previous prime is 102642619. The next prime is 102642647. The reversal of 102642634 is 436246201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33642 + ... + 36565.

It is an arithmetic number, because the mean of its divisors is an integer number (10425888).

Almost surely, 2^102642634 is an apocalyptic number.

102642634 is a deficient number, since it is larger than the sum of its proper divisors (64171574).

102642634 is a wasteful number, since it uses less digits than its factorization.

102642634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70269.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 102642634 is about 10131.2701079381. The cubic root of 102642634 is about 468.2120602510.

Adding to 102642634 its reverse (436246201), we get a palindrome (538888835).

It can be divided in two parts, 1026 and 42634, that added together give a triangular number (43660 = T₂₉₅).

The spelling of 102642634 in words is "one hundred two million, six hundred forty-two thousand, six hundred thirty-four".