122777946 has 24 divisors (see below), whose sum is σ = 267287904. Its totient is φ = 40730760.

The previous prime is 122777939. The next prime is 122777953. The reversal of 122777946 is 649777221.

It is an interprime number because it is at equal distance from previous prime (122777939) and next prime (122777953).

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, 12366 + ... + 19961.

It is an arithmetic number, because the mean of its divisors is an integer number (11136996).

Almost surely, 2^122777946 is an apocalyptic number.

122777946 is an abundant number, since it is smaller than the sum of its proper divisors (144509958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122777946 is a wasteful number, since it uses less digits than its factorization.

122777946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32546 (or 32543 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 122777946 is about 11080.5210166309. The cubic root of 122777946 is about 497.0195302348.

The spelling of 122777946 in words is "one hundred twenty-two million, seven hundred seventy-seven thousand, nine hundred forty-six".