147147931 has 12 divisors (see below), whose sum is σ = 171441408. Its totient is φ = 125928432.

The previous prime is 147147919. The next prime is 147147953. The reversal of 147147931 is 139741741.

It is not a de Polignac number, because 147147931 - 2⁵ = 147147899 is a prime.

It is a super-2 number, since 2×147147931² = 43305027195161522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147147431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35110 + ... + 39076.

It is an arithmetic number, because the mean of its divisors is an integer number (14286784).

Almost surely, 2^147147931 is an apocalyptic number.

147147931 is a deficient number, since it is larger than the sum of its proper divisors (24293477).

147147931 is an equidigital number, since it uses as much as digits as its factorization.

147147931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738 (or 4731 counting only the distinct ones).

The product of its digits is 21168, while the sum is 37.

The square root of 147147931 is about 12130.4546905712. The cubic root of 147147931 is about 527.9401846745.

The spelling of 147147931 in words is "one hundred forty-seven million, one hundred forty-seven thousand, nine hundred thirty-one".