122890623 has 16 divisors (see below), whose sum is σ = 167330016. Its totient is φ = 80196480.

The previous prime is 122890619. The next prime is 122890631. The reversal of 122890623 is 326098221.

It is a happy number.

It is not a de Polignac number, because 122890623 - 2² = 122890619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122890673) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 119853 + ... + 120873.

It is an arithmetic number, because the mean of its divisors is an integer number (10458126).

Almost surely, 2^122890623 is an apocalyptic number.

122890623 is a deficient number, since it is larger than the sum of its proper divisors (44439393).

122890623 is a wasteful number, since it uses less digits than its factorization.

122890623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 122890623 is about 11085.6043137034. The cubic root of 122890623 is about 497.1715269855.

The spelling of 122890623 in words is "one hundred twenty-two million, eight hundred ninety thousand, six hundred twenty-three".