122631590 has 8 divisors (see below), whose sum is σ = 220736880. Its totient is φ = 49052632.

The previous prime is 122631547. The next prime is 122631599. The reversal of 122631590 is 95136221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122631599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6131570 + ... + 6131589.

It is an arithmetic number, because the mean of its divisors is an integer number (27592110).

Almost surely, 2^122631590 is an apocalyptic number.

122631590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122631590 is a deficient number, since it is larger than the sum of its proper divisors (98105290).

122631590 is a wasteful number, since it uses less digits than its factorization.

122631590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12263166.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 122631590 is about 11073.9148452568. The cubic root of 122631590 is about 496.8219629583.

The spelling of 122631590 in words is "one hundred twenty-two million, six hundred thirty-one thousand, five hundred ninety".