122890630 has 16 divisors (see below), whose sum is σ = 223869744. Its totient is φ = 48563680.

The previous prime is 122890619. The next prime is 122890631. The reversal of 122890630 is 36098221.

It is a junction number, because it is equal to n+sod(n) for n = 122890592 and 122890601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122890631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73201 + ... + 74860.

It is an arithmetic number, because the mean of its divisors is an integer number (13991859).

Almost surely, 2^122890630 is an apocalyptic number.

122890630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122890630 is a deficient number, since it is larger than the sum of its proper divisors (100979114).

122890630 is a wasteful number, since it uses less digits than its factorization.

122890630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148151.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 122890630 is about 11085.6046294282. The cubic root of 122890630 is about 497.1715364253.

The spelling of 122890630 in words is "one hundred twenty-two million, eight hundred ninety thousand, six hundred thirty".