147856013 has 2 divisors, whose sum is σ = 147856014. Its totient is φ = 147856012.

The previous prime is 147856003. The next prime is 147856039. The reversal of 147856013 is 310658741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104796169 + 43059844 = 10237^2 + 6562^2 .

It is a cyclic number.

It is not a de Polignac number, because 147856013 - 2⁴ = 147855997 is a prime.

It is a super-2 number, since 2×147856013² = 43722801160512338, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147856003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73928006 + 73928007.

It is an arithmetic number, because the mean of its divisors is an integer number (73928007).

Almost surely, 2^147856013 is an apocalyptic number.

It is an amenable number.

147856013 is a deficient number, since it is larger than the sum of its proper divisors (1).

147856013 is an equidigital number, since it uses as much as digits as its factorization.

147856013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 147856013 is about 12159.6057913075. The cubic root of 147856013 is about 528.7856533960.

The spelling of 147856013 in words is "one hundred forty-seven million, eight hundred fifty-six thousand, thirteen".