147017239 has 4 divisors (see below), whose sum is σ = 148139640. Its totient is φ = 145894840.

The previous prime is 147017237. The next prime is 147017249. The reversal of 147017239 is 932710741.

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

It is a cyclic number.

It is not a de Polignac number, because 147017239 - 2¹ = 147017237 is a prime.

It is a super-2 number, since 2×147017239² = 43228137126366242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147017237) 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 in 3 ways as a sum of consecutive naturals, for example, 561004 + ... + 561265.

It is an arithmetic number, because the mean of its divisors is an integer number (37034910).

Almost surely, 2^147017239 is an apocalyptic number.

147017239 is a deficient number, since it is larger than the sum of its proper divisors (1122401).

147017239 is a wasteful number, since it uses less digits than its factorization.

147017239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122400.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 147017239 is about 12125.0665565184. The cubic root of 147017239 is about 527.7838386188.

The spelling of 147017239 in words is "one hundred forty-seven million, seventeen thousand, two hundred thirty-nine".