122947725 has 24 divisors (see below), whose sum is σ = 208236672. Its totient is φ = 63971200.

The previous prime is 122947717. The next prime is 122947751. The reversal of 122947725 is 527749221.

It is not a de Polignac number, because 122947725 - 2³ = 122947717 is a prime.

It is a super-2 number, since 2×122947725² = 30232286165351250, which contains 22 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 16917 + ... + 23066.

It is an arithmetic number, because the mean of its divisors is an integer number (8676528).

Almost surely, 2^122947725 is an apocalyptic number.

122947725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122947725 is a deficient number, since it is larger than the sum of its proper divisors (85288947).

122947725 is a wasteful number, since it uses less digits than its factorization.

122947725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40037 (or 40032 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 122947725 is about 11088.1795169451. The cubic root of 122947725 is about 497.2485198209.

The spelling of 122947725 in words is "one hundred twenty-two million, nine hundred forty-seven thousand, seven hundred twenty-five".