122783264 has 12 divisors (see below), whose sum is σ = 241729614. Its totient is φ = 61391616.

The previous prime is 122783257. The next prime is 122783267. The reversal of 122783264 is 462387221.

It can be written as a sum of positive squares in only one way, i.e., 102171664 + 20611600 = 10108^2 + 4540^2 .

It is not an unprimeable number, because it can be changed into a prime (122783267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1918457 + ... + 1918520.

Almost surely, 2^122783264 is an apocalyptic number.

It is an amenable number.

122783264 is a deficient number, since it is larger than the sum of its proper divisors (118946350).

122783264 is an equidigital number, since it uses as much as digits as its factorization.

122783264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836987 (or 3836979 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 122783264 is about 11080.7609846978. The cubic root of 122783264 is about 497.0267060938.

The spelling of 122783264 in words is "one hundred twenty-two million, seven hundred eighty-three thousand, two hundred sixty-four".