102078158 has 16 divisors (see below), whose sum is σ = 188452320. Its totient is φ = 40382496.

The previous prime is 102078143. The next prime is 102078161. The reversal of 102078158 is 851870201.

It is a happy number.

It is a congruent number.

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, 280253 + ... + 280616.

It is an arithmetic number, because the mean of its divisors is an integer number (11778270).

Almost surely, 2^102078158 is an apocalyptic number.

102078158 is a deficient number, since it is larger than the sum of its proper divisors (86374162).

102078158 is a wasteful number, since it uses less digits than its factorization.

102078158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560891.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 102078158 is about 10103.3735949929. The cubic root of 102078158 is about 467.3521821933.

The spelling of 102078158 in words is "one hundred two million, seventy-eight thousand, one hundred fifty-eight".