102942878 has 16 divisors (see below), whose sum is σ = 162791424. Its totient is φ = 48749880.

The previous prime is 102942877. The next prime is 102942901. The reversal of 102942878 is 878249201.

It is a super-2 number, since 2×102942878² = 21194472261845768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102942877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14750 + ... + 20577.

It is an arithmetic number, because the mean of its divisors is an integer number (10174464).

Almost surely, 2^102942878 is an apocalyptic number.

102942878 is a deficient number, since it is larger than the sum of its proper divisors (59848546).

102942878 is a wasteful number, since it uses less digits than its factorization.

102942878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35407.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 102942878 is about 10146.0769758562. The cubic root of 102942878 is about 468.6681443319.

The spelling of 102942878 in words is "one hundred two million, nine hundred forty-two thousand, eight hundred seventy-eight".