102042970 has 16 divisors (see below), whose sum is σ = 183801960. Its totient is φ = 40789504.

The previous prime is 102042949. The next prime is 102042989. The reversal of 102042970 is 79240201.

It can be written as a sum of positive squares in 4 ways, for example, as 87366409 + 14676561 = 9347^2 + 3831^2 .

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, 18894 + ... + 23686.

Almost surely, 2^102042970 is an apocalyptic number.

102042970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102042970 is a deficient number, since it is larger than the sum of its proper divisors (81758990).

102042970 is a wasteful number, since it uses less digits than its factorization.

102042970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6929.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 102042970 is about 10101.6320463577. The cubic root of 102042970 is about 467.2984747241.

The spelling of 102042970 in words is "one hundred two million, forty-two thousand, nine hundred seventy".