122467891 has 16 divisors (see below), whose sum is σ = 154807744. Its totient is φ = 94276224.

The previous prime is 122467883. The next prime is 122467897. The reversal of 122467891 is 198764221.

It is not a de Polignac number, because 122467891 - 2³ = 122467883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122467897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14820 + ... + 21553.

It is an arithmetic number, because the mean of its divisors is an integer number (9675484).

Almost surely, 2^122467891 is an apocalyptic number.

122467891 is a deficient number, since it is larger than the sum of its proper divisors (32339853).

122467891 is a wasteful number, since it uses less digits than its factorization.

122467891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36430.

The product of its digits is 48384, while the sum is 40.

The square root of 122467891 is about 11066.5211787625. The cubic root of 122467891 is about 496.6007978851.

The spelling of 122467891 in words is "one hundred twenty-two million, four hundred sixty-seven thousand, eight hundred ninety-one".