147479939 has 2 divisors, whose sum is σ = 147479940. Its totient is φ = 147479938.

The previous prime is 147479921. The next prime is 147479951. The reversal of 147479939 is 939974741.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 147479939 - 2¹² = 147475843 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (147479909) 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 as a sum of consecutive naturals, namely, 73739969 + 73739970.

It is an arithmetic number, because the mean of its divisors is an integer number (73739970).

Almost surely, 2^147479939 is an apocalyptic number.

147479939 is a deficient number, since it is larger than the sum of its proper divisors (1).

147479939 is an equidigital number, since it uses as much as digits as its factorization.

147479939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 53.

The square root of 147479939 is about 12144.1318751074. The cubic root of 147479939 is about 528.3369479884.

The spelling of 147479939 in words is "one hundred forty-seven million, four hundred seventy-nine thousand, nine hundred thirty-nine".