122631506 has 16 divisors (see below), whose sum is σ = 198445464. Its totient is φ = 56619264.

The previous prime is 122631503. The next prime is 122631511. The reversal of 122631506 is 605136221.

It can be written as a sum of positive squares in 4 ways, for example, as 112550881 + 10080625 = 10609^2 + 3175^2 .

It is not an unprimeable number, because it can be changed into a prime (122631503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32225 + ... + 35828.

Almost surely, 2^122631506 is an apocalyptic number.

122631506 is a deficient number, since it is larger than the sum of its proper divisors (75813958).

122631506 is a wasteful number, since it uses less digits than its factorization.

122631506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68125.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 122631506 is about 11073.9110525595. The cubic root of 122631506 is about 496.8218495209.

Adding to 122631506 its reverse (605136221), we get a palindrome (727767727).

The spelling of 122631506 in words is "one hundred twenty-two million, six hundred thirty-one thousand, five hundred six".