78123022 has 16 divisors (see below), whose sum is σ = 123984000. Its totient is φ = 36816120.

The previous prime is 78122987. The next prime is 78123037. The reversal of 78123022 is 22032187.

It is a super-2 number, since 2×78123022² = 12206413132824968, which contains 22 as substring.

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, 2397 + ... + 12727.

It is an arithmetic number, because the mean of its divisors is an integer number (7749000).

Almost surely, 2^78123022 is an apocalyptic number.

78123022 is a deficient number, since it is larger than the sum of its proper divisors (45860978).

78123022 is a wasteful number, since it uses less digits than its factorization.

78123022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10551.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 78123022 is about 8838.7228715465. The cubic root of 78123022 is about 427.4903788175.

The spelling of 78123022 in words is "seventy-eight million, one hundred twenty-three thousand, twenty-two".