122151894 has 16 divisors (see below), whose sum is σ = 244413120. Its totient is φ = 40699080.

The previous prime is 122151871. The next prime is 122151907. The reversal of 122151894 is 498151221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20997 + ... + 26175.

It is an arithmetic number, because the mean of its divisors is an integer number (15275820).

Almost surely, 2^122151894 is an apocalyptic number.

122151894 is an abundant number, since it is smaller than the sum of its proper divisors (122261226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122151894 is a wasteful number, since it uses less digits than its factorization.

122151894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9115.

The product of its digits is 5760, while the sum is 33.

The square root of 122151894 is about 11052.2347966373. The cubic root of 122151894 is about 496.1733129812.

The spelling of 122151894 in words is "one hundred twenty-two million, one hundred fifty-one thousand, eight hundred ninety-four".