122557970 has 8 divisors (see below), whose sum is σ = 220604364. Its totient is φ = 49023184.

The previous prime is 122557957. The next prime is 122557991. The reversal of 122557970 is 79755221.

It can be written as a sum of positive squares in 2 ways, for example, as 118875409 + 3682561 = 10903^2 + 1919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6127889 + ... + 6127908.

Almost surely, 2^122557970 is an apocalyptic number.

122557970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122557970 is a deficient number, since it is larger than the sum of its proper divisors (98046394).

122557970 is a wasteful number, since it uses less digits than its factorization.

122557970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12255804.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 122557970 is about 11070.5903184970. The cubic root of 122557970 is about 496.7225232337.

It can be divided in two parts, 1225 and 57970, that added together give a palindrome (59195).

The spelling of 122557970 in words is "one hundred twenty-two million, five hundred fifty-seven thousand, nine hundred seventy".