131263475849 has 8 divisors (see below), whose sum is σ = 143276583360. Its totient is φ = 119263712400.

The previous prime is 131263475821. The next prime is 131263475873. The reversal of 131263475849 is 948574362131.

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 131263475849 - 2³² = 126968508553 is a prime.

It is a super-2 number, since 2×131263475849² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131263475849.

It is not an unprimeable number, because it can be changed into a prime (131263475879) 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, 3315437 + ... + 3354794.

It is an arithmetic number, because the mean of its divisors is an integer number (17909572920).

Almost surely, 2^131263475849 is an apocalyptic number.

It is an amenable number.

131263475849 is a deficient number, since it is larger than the sum of its proper divisors (12013107511).

131263475849 is a wasteful number, since it uses less digits than its factorization.

131263475849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6672031.

The product of its digits is 4354560, while the sum is 53.

The spelling of 131263475849 in words is "one hundred thirty-one billion, two hundred sixty-three million, four hundred seventy-five thousand, eight hundred forty-nine".