122457946 has 16 divisors (see below), whose sum is σ = 198563400. Its totient is φ = 56305728.

The previous prime is 122457943. The next prime is 122457961. The reversal of 122457946 is 649754221.

It can be written as a sum of positive squares in 4 ways, for example, as 15563025 + 106894921 = 3945^2 + 10339^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122457899 and 122457908.

It is not an unprimeable number, because it can be changed into a prime (122457943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1761 + ... + 15748.

Almost surely, 2^122457946 is an apocalyptic number.

122457946 is a deficient number, since it is larger than the sum of its proper divisors (76105454).

122457946 is a wasteful number, since it uses less digits than its factorization.

122457946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17793.

The product of its digits is 120960, while the sum is 40.

The square root of 122457946 is about 11066.0718414440. The cubic root of 122457946 is about 496.5873553722.

The spelling of 122457946 in words is "one hundred twenty-two million, four hundred fifty-seven thousand, nine hundred forty-six".