7131215106 has 32 divisors (see below), whose sum is σ = 15861774720. Its totient is φ = 2374877232.

The previous prime is 7131215099. The next prime is 7131215123. The reversal of 7131215106 is 6015121317.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 7131215106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1390 + ... + 119433.

It is an arithmetic number, because the mean of its divisors is an integer number (495680460).

Almost surely, 2^7131215106 is an apocalyptic number.

7131215106 is an abundant number, since it is smaller than the sum of its proper divisors (8730559614).

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

7131215106 is a wasteful number, since it uses less digits than its factorization.

7131215106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121927 (or 121921 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 7131215106 is about 84446.5221663983. The cubic root of 7131215106 is about 1924.8099081197.

The spelling of 7131215106 in words is "seven billion, one hundred thirty-one million, two hundred fifteen thousand, one hundred six".