147664331 has 2 divisors, whose sum is σ = 147664332. Its totient is φ = 147664330.

The previous prime is 147664303. The next prime is 147664337. The reversal of 147664331 is 133466741.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 147664331 - 2¹⁸ = 147402187 is a prime.

It is a super-2 number, since 2×147664331² = 43609509299355122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 147664291 and 147664300.

It is not a weakly prime, because it can be changed into another prime (147664337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73832165 + 73832166.

It is an arithmetic number, because the mean of its divisors is an integer number (73832166).

Almost surely, 2^147664331 is an apocalyptic number.

147664331 is a deficient number, since it is larger than the sum of its proper divisors (1).

147664331 is an equidigital number, since it uses as much as digits as its factorization.

147664331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 35.

The square root of 147664331 is about 12151.7213183977. The cubic root of 147664331 is about 528.5570469251.

The spelling of 147664331 in words is "one hundred forty-seven million, six hundred sixty-four thousand, three hundred thirty-one".