147005239 has 4 divisors (see below), whose sum is σ = 155652624. Its totient is φ = 138357856.

The previous prime is 147005233. The next prime is 147005269. The reversal of 147005239 is 932500741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 932500741 = 1021 ⋅913321.

It is a cyclic number.

It is not a de Polignac number, because 147005239 - 2⁵ = 147005207 is a prime.

It is a super-2 number, since 2×147005239² = 43221080586894242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 147005239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147005233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4323667 + ... + 4323700.

It is an arithmetic number, because the mean of its divisors is an integer number (38913156).

Almost surely, 2^147005239 is an apocalyptic number.

147005239 is a deficient number, since it is larger than the sum of its proper divisors (8647385).

147005239 is an equidigital number, since it uses as much as digits as its factorization.

147005239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8647384.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 147005239 is about 12124.5717037758. The cubic root of 147005239 is about 527.7694784471.

The spelling of 147005239 in words is "one hundred forty-seven million, five thousand, two hundred thirty-nine".