122142631 has 16 divisors (see below), whose sum is σ = 133668864. Its totient is φ = 110938464.

The previous prime is 122142607. The next prime is 122142667. The reversal of 122142631 is 136241221.

It is not a de Polignac number, because 122142631 - 2⁵ = 122142599 is a prime.

It is a super-2 number, since 2×122142631² = 29837644615204322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122142131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275496 + ... + 275938.

It is an arithmetic number, because the mean of its divisors is an integer number (8354304).

Almost surely, 2^122142631 is an apocalyptic number.

122142631 is a deficient number, since it is larger than the sum of its proper divisors (11526233).

122142631 is a wasteful number, since it uses less digits than its factorization.

122142631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750.

The product of its digits is 576, while the sum is 22.

The square root of 122142631 is about 11051.8157331725. The cubic root of 122142631 is about 496.1607707563.

Adding to 122142631 its reverse (136241221), we get a palindrome (258383852).

The spelling of 122142631 in words is "one hundred twenty-two million, one hundred forty-two thousand, six hundred thirty-one".