78022150 has 12 divisors (see below), whose sum is σ = 145121292. Its totient is φ = 31208840.

The previous prime is 78022127. The next prime is 78022171. The reversal of 78022150 is 5122087.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 780172 + ... + 780271.

It is an arithmetic number, because the mean of its divisors is an integer number (12093441).

Almost surely, 2^78022150 is an apocalyptic number.

78022150 is a deficient number, since it is larger than the sum of its proper divisors (67099142).

78022150 is a wasteful number, since it uses less digits than its factorization.

78022150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560455 (or 1560450 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 78022150 is about 8833.0147741301. The cubic root of 78022150 is about 427.3063085257.

The spelling of 78022150 in words is "seventy-eight million, twenty-two thousand, one hundred fifty".