531212106 has 16 divisors (see below), whose sum is σ = 1062668448. Its totient is φ = 177030000.

The previous prime is 531212069. The next prime is 531212147. The reversal of 531212106 is 601212135.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30781 + ... + 44831.

It is an arithmetic number, because the mean of its divisors is an integer number (66416778).

Almost surely, 2^531212106 is an apocalyptic number.

531212106 is an abundant number, since it is smaller than the sum of its proper divisors (531456342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531212106 is a wasteful number, since it uses less digits than its factorization.

531212106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20357.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 531212106 is about 23048.0390922959. The cubic root of 531212106 is about 809.8836931008.

The spelling of 531212106 in words is "five hundred thirty-one million, two hundred twelve thousand, one hundred six".