147904731 has 16 divisors (see below), whose sum is σ = 235973920. Its totient is φ = 91018080.

The previous prime is 147904717. The next prime is 147904741. The reversal of 147904731 is 137409741.

147904731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 147904731 - 2⁶ = 147904667 is a prime.

It is a super-2 number, since 2×147904731² = 43751618904364722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (147904741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210340 + ... + 211041.

It is an arithmetic number, because the mean of its divisors is an integer number (14748370).

Almost surely, 2^147904731 is an apocalyptic number.

147904731 is a deficient number, since it is larger than the sum of its proper divisors (88069189).

147904731 is a wasteful number, since it uses less digits than its factorization.

147904731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421403 (or 421397 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 147904731 is about 12161.6088984969. The cubic root of 147904731 is about 528.8437246462.

The spelling of 147904731 in words is "one hundred forty-seven million, nine hundred four thousand, seven hundred thirty-one".