147242331 has 12 divisors (see below), whose sum is σ = 213765552. Its totient is φ = 97662096.

The previous prime is 147242327. The next prime is 147242383. The reversal of 147242331 is 133242741.

It is a happy number.

It is not a de Polignac number, because 147242331 - 2² = 147242327 is a prime.

It is a super-2 number, since 2×147242331² = 43360608076627122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 147242295 and 147242304.

It is not an unprimeable number, because it can be changed into a prime (147242131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39751 + ... + 43296.

It is an arithmetic number, because the mean of its divisors is an integer number (17813796).

Almost surely, 2^147242331 is an apocalyptic number.

147242331 is a deficient number, since it is larger than the sum of its proper divisors (66523221).

147242331 is a wasteful number, since it uses less digits than its factorization.

147242331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83250 (or 83247 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 147242331 is about 12134.3450997571. The cubic root of 147242331 is about 528.0530572543.

The spelling of 147242331 in words is "one hundred forty-seven million, two hundred forty-two thousand, three hundred thirty-one".