122513440 has 48 divisors (see below), whose sum is σ = 330789312. Its totient is φ = 42004224.

The previous prime is 122513423. The next prime is 122513449. The reversal of 122513440 is 44315221.

It is not an unprimeable number, because it can be changed into a prime (122513449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 53574 + ... + 55813.

It is an arithmetic number, because the mean of its divisors is an integer number (6891444).

Almost surely, 2^122513440 is an apocalyptic number.

122513440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122513440 is an abundant number, since it is smaller than the sum of its proper divisors (208275872).

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

122513440 is a wasteful number, since it uses less digits than its factorization.

122513440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109409 (or 109401 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 122513440 is about 11068.5789512475. The cubic root of 122513440 is about 496.6623565131.

Adding to 122513440 its reverse (44315221), we get a palindrome (166828661).

The spelling of 122513440 in words is "one hundred twenty-two million, five hundred thirteen thousand, four hundred forty".