7131252269 has 4 divisors (see below), whose sum is σ = 7133918844. Its totient is φ = 7128585696.

The previous prime is 7131252263. The next prime is 7131252301. The reversal of 7131252269 is 9622521317.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3051236644 + 4080015625 = 55238^2 + 63875^2 .

It is a cyclic number.

It is not a de Polignac number, because 7131252269 - 2⁸ = 7131252013 is a prime.

It is a super-2 number, since 2×7131252269² (a number of 21 digits) 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 (7131252263) 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, 1329272 + ... + 1334625.

It is an arithmetic number, because the mean of its divisors is an integer number (1783479711).

Almost surely, 2^7131252269 is an apocalyptic number.

It is an amenable number.

7131252269 is a deficient number, since it is larger than the sum of its proper divisors (2666575).

7131252269 is a wasteful number, since it uses less digits than its factorization.

7131252269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666574.

The product of its digits is 45360, while the sum is 38.

The square root of 7131252269 is about 84446.7422047766. The cubic root of 7131252269 is about 1924.8132517100.

The spelling of 7131252269 in words is "seven billion, one hundred thirty-one million, two hundred fifty-two thousand, two hundred sixty-nine".