147579997 has 2 divisors, whose sum is σ = 147579998. Its totient is φ = 147579996.

The previous prime is 147579919. The next prime is 147580007. The reversal of 147579997 is 799975741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147355321 + 224676 = 12139^2 + 474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147579997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147579917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73789998 + 73789999.

It is an arithmetic number, because the mean of its divisors is an integer number (73789999).

Almost surely, 2^147579997 is an apocalyptic number.

It is an amenable number.

147579997 is a deficient number, since it is larger than the sum of its proper divisors (1).

147579997 is an equidigital number, since it uses as much as digits as its factorization.

147579997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5000940, while the sum is 58.

The square root of 147579997 is about 12148.2507794332. The cubic root of 147579997 is about 528.4564046591.

The spelling of 147579997 in words is "one hundred forty-seven million, five hundred seventy-nine thousand, nine hundred ninety-seven".