122515464 has 64 divisors (see below), whose sum is σ = 331257600. Its totient is φ = 37612544.

The previous prime is 122515451. The next prime is 122515493. The reversal of 122515464 is 464515221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15982 + ... + 22370.

It is an arithmetic number, because the mean of its divisors is an integer number (5175900).

Almost surely, 2^122515464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122515464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165628800).

122515464 is an abundant number, since it is smaller than the sum of its proper divisors (208742136).

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

122515464 is a wasteful number, since it uses less digits than its factorization.

122515464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6462 (or 6458 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 122515464 is about 11068.6703808542. The cubic root of 122515464 is about 496.6650915574.

The spelling of 122515464 in words is "one hundred twenty-two million, five hundred fifteen thousand, four hundred sixty-four".