125347839 has 8 divisors (see below), whose sum is σ = 167391360. Its totient is φ = 83434776.

The previous prime is 125347819. The next prime is 125347877. The reversal of 125347839 is 938743521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125347839 - 2¹⁶ = 125282303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125347839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125347819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30349 + ... + 34230.

It is an arithmetic number, because the mean of its divisors is an integer number (20923920).

Almost surely, 2^125347839 is an apocalyptic number.

125347839 is a deficient number, since it is larger than the sum of its proper divisors (42043521).

125347839 is an equidigital number, since it uses as much as digits as its factorization.

125347839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65229.

The product of its digits is 181440, while the sum is 42.

The square root of 125347839 is about 11195.8849136636. The cubic root of 125347839 is about 500.4633558035.

The spelling of 125347839 in words is "one hundred twenty-five million, three hundred forty-seven thousand, eight hundred thirty-nine".