1172370131 has 4 divisors (see below), whose sum is σ = 1173160032. Its totient is φ = 1171580232.

The previous prime is 1172370109. The next prime is 1172370137. The reversal of 1172370131 is 1310732711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1172370131 - 2¹⁴ = 1172353747 is a prime.

It is a super-2 number, since 2×1172370131² = 2748903448121914322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1172370131.

It is not an unprimeable number, because it can be changed into a prime (1172370137) 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, 392720 + ... + 395693.

It is an arithmetic number, because the mean of its divisors is an integer number (293290008).

Almost surely, 2^1172370131 is an apocalyptic number.

1172370131 is a deficient number, since it is larger than the sum of its proper divisors (789901).

1172370131 is an equidigital number, since it uses as much as digits as its factorization.

1172370131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789900.

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 1172370131 is about 34239.8909314852. The cubic root of 1172370131 is about 1054.4392941544.

The spelling of 1172370131 in words is "one billion, one hundred seventy-two million, three hundred seventy thousand, one hundred thirty-one".