131252749851 has 8 divisors (see below), whose sum is σ = 175031395344. Its totient is φ = 87487968800.

The previous prime is 131252749811. The next prime is 131252749871. The reversal of 131252749851 is 158947252131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131252749851 - 2¹⁵ = 131252717083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131252749851.

It is not an unprimeable number, because it can be changed into a prime (131252749811) 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, 3444000 + ... + 3481901.

It is an arithmetic number, because the mean of its divisors is an integer number (21878924418).

Almost surely, 2^131252749851 is an apocalyptic number.

131252749851 is a deficient number, since it is larger than the sum of its proper divisors (43778645493).

131252749851 is an equidigital number, since it uses as much as digits as its factorization.

131252749851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6932221.

The product of its digits is 604800, while the sum is 48.

The spelling of 131252749851 in words is "one hundred thirty-one billion, two hundred fifty-two million, seven hundred forty-nine thousand, eight hundred fifty-one".