122751136 has 12 divisors (see below), whose sum is σ = 241666362. Its totient is φ = 61375552.

The previous prime is 122751121. The next prime is 122751137. The reversal of 122751136 is 631157221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 64320400 + 58430736 = 8020^2 + 7644^2 .

It is not an unprimeable number, because it can be changed into a prime (122751137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1917955 + ... + 1918018.

Almost surely, 2^122751136 is an apocalyptic number.

122751136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122751136 is a deficient number, since it is larger than the sum of its proper divisors (118915226).

122751136 is an equidigital number, since it uses as much as digits as its factorization.

122751136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3835983 (or 3835975 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 122751136 is about 11079.3111699239. The cubic root of 122751136 is about 496.9833509261.

The spelling of 122751136 in words is "one hundred twenty-two million, seven hundred fifty-one thousand, one hundred thirty-six".