31146133374547 has 4 divisors (see below), whose sum is σ = 31870462057720. Its totient is φ = 30421804691376.

The previous prime is 31146133374529. The next prime is 31146133374581. The reversal of 31146133374547 is 74547333164113.

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

It is not a de Polignac number, because 31146133374547 - 2¹¹ = 31146133372499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31146133374494 and 31146133374503.

It is not an unprimeable number, because it can be changed into a prime (31146139374547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362164341522 + ... + 362164341607.

It is an arithmetic number, because the mean of its divisors is an integer number (7967615514430).

Almost surely, 2^{31146133374547} is an apocalyptic number.

31146133374547 is a deficient number, since it is larger than the sum of its proper divisors (724328683173).

31146133374547 is an equidigital number, since it uses as much as digits as its factorization.

31146133374547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724328683172.

The product of its digits is 7620480, while the sum is 52.

The spelling of 31146133374547 in words is "thirty-one trillion, one hundred forty-six billion, one hundred thirty-three million, three hundred seventy-four thousand, five hundred forty-seven".