122651444 has 6 divisors (see below), whose sum is σ = 214640034. Its totient is φ = 61325720.

The previous prime is 122651429. The next prime is 122651449. The reversal of 122651444 is 444156221.

It can be written as a sum of positive squares in only one way, i.e., 117072400 + 5579044 = 10820^2 + 2362^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122651449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15331427 + ... + 15331434.

It is an arithmetic number, because the mean of its divisors is an integer number (35773339).

Almost surely, 2^122651444 is an apocalyptic number.

It is an amenable number.

122651444 is a deficient number, since it is larger than the sum of its proper divisors (91988590).

122651444 is a wasteful number, since it uses less digits than its factorization.

122651444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30662865 (or 30662863 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 122651444 is about 11074.8112399264. The cubic root of 122651444 is about 496.8487732633.

The spelling of 122651444 in words is "one hundred twenty-two million, six hundred fifty-one thousand, four hundred forty-four".