78275150 has 24 divisors (see below), whose sum is σ = 149146704. Its totient is φ = 30545600.

The previous prime is 78275149. The next prime is 78275161. The reversal of 78275150 is 5157287.

It is a super-2 number, since 2×78275150² = 12253998215045000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 78275150.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17042 + ... + 21141.

It is an arithmetic number, because the mean of its divisors is an integer number (6214446).

Almost surely, 2^78275150 is an apocalyptic number.

78275150 is a deficient number, since it is larger than the sum of its proper divisors (70871554).

78275150 is a wasteful number, since it uses less digits than its factorization.

78275150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38236 (or 38231 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 78275150 is about 8847.3244543195. The cubic root of 78275150 is about 427.7676811520.

The spelling of 78275150 in words is "seventy-eight million, two hundred seventy-five thousand, one hundred fifty".