147613985 has 4 divisors (see below), whose sum is σ = 177136788. Its totient is φ = 118091184.

The previous prime is 147613951. The next prime is 147613993. The reversal of 147613985 is 589316741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72063121 + 75550864 = 8489^2 + 8692^2 .

It is a cyclic number.

It is not a de Polignac number, because 147613985 - 2²⁶ = 80505121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 14761394 + ... + 14761403.

It is an arithmetic number, because the mean of its divisors is an integer number (44284197).

Almost surely, 2^147613985 is an apocalyptic number.

It is an amenable number.

147613985 is a deficient number, since it is larger than the sum of its proper divisors (29522803).

147613985 is an equidigital number, since it uses as much as digits as its factorization.

147613985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29522802.

The product of its digits is 181440, while the sum is 44.

The square root of 147613985 is about 12149.6495834242. The cubic root of 147613985 is about 528.4969697718.

The spelling of 147613985 in words is "one hundred forty-seven million, six hundred thirteen thousand, nine hundred eighty-five".