122888947 has 4 divisors (see below), whose sum is σ = 123430536. Its totient is φ = 122347360.

The previous prime is 122888911. The next prime is 122889007. The reversal of 122888947 is 749888221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749888221 = 257 ⋅2917853.

It is a cyclic number.

It is not a de Polignac number, because 122888947 - 2⁷ = 122888819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122888947.

It is not an unprimeable number, because it can be changed into a prime (122888147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270454 + ... + 270907.

It is an arithmetic number, because the mean of its divisors is an integer number (30857634).

Almost surely, 2^122888947 is an apocalyptic number.

122888947 is a deficient number, since it is larger than the sum of its proper divisors (541589).

122888947 is an equidigital number, since it uses as much as digits as its factorization.

122888947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541588.

The product of its digits is 516096, while the sum is 49.

The square root of 122888947 is about 11085.5287199123. The cubic root of 122888947 is about 497.1692668096.

The spelling of 122888947 in words is "one hundred twenty-two million, eight hundred eighty-eight thousand, nine hundred forty-seven".