147201439 has 24 divisors (see below), whose sum is σ = 191385936. Its totient is φ = 111888000.

The previous prime is 147201433. The next prime is 147201443. The reversal of 147201439 is 934102741.

It is not a de Polignac number, because 147201439 - 2²¹ = 145104287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147201439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147201433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18769 + ... + 25429.

It is an arithmetic number, because the mean of its divisors is an integer number (7974414).

Almost surely, 2^147201439 is an apocalyptic number.

147201439 is a deficient number, since it is larger than the sum of its proper divisors (44184497).

147201439 is a wasteful number, since it uses less digits than its factorization.

147201439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6727 (or 6720 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 147201439 is about 12132.6600133689. The cubic root of 147201439 is about 528.0041692642.

The spelling of 147201439 in words is "one hundred forty-seven million, two hundred one thousand, four hundred thirty-nine".