147856039 has 2 divisors, whose sum is σ = 147856040. Its totient is φ = 147856038.

The previous prime is 147856013. The next prime is 147856063. The reversal of 147856039 is 930658741.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147856039 is a prime.

It is a super-2 number, since 2×147856039² = 43722816537539042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 147855986 and 147856004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147856099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73928019 + 73928020.

It is an arithmetic number, because the mean of its divisors is an integer number (73928020).

Almost surely, 2^147856039 is an apocalyptic number.

147856039 is a deficient number, since it is larger than the sum of its proper divisors (1).

147856039 is an equidigital number, since it uses as much as digits as its factorization.

147856039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 147856039 is about 12159.6068604211. The cubic root of 147856039 is about 528.7856843911.

The spelling of 147856039 in words is "one hundred forty-seven million, eight hundred fifty-six thousand, thirty-nine".