122890395 has 16 divisors (see below), whose sum is σ = 199560960. Its totient is φ = 64562784.

The previous prime is 122890393. The next prime is 122890441. The reversal of 122890395 is 593098221.

It is not a de Polignac number, because 122890395 - 2¹ = 122890393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122890393) 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, 60135 + ... + 62144.

It is an arithmetic number, because the mean of its divisors is an integer number (12472560).

Almost surely, 2^122890395 is an apocalyptic number.

122890395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122890395 is a deficient number, since it is larger than the sum of its proper divisors (76670565).

122890395 is a wasteful number, since it uses less digits than its factorization.

122890395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122354.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 122890395 is about 11085.5940300915. The cubic root of 122890395 is about 497.1712195165.

The spelling of 122890395 in words is "one hundred twenty-two million, eight hundred ninety thousand, three hundred ninety-five".