525346139 has 8 divisors (see below), whose sum is σ = 532500480. Its totient is φ = 518233576.

The previous prime is 525346127. The next prime is 525346141. The reversal of 525346139 is 931643525.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525346139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (525346109) 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, 15302 + ... + 35844.

It is an arithmetic number, because the mean of its divisors is an integer number (66562560).

Almost surely, 2^525346139 is an apocalyptic number.

525346139 is a deficient number, since it is larger than the sum of its proper divisors (7154341).

525346139 is a wasteful number, since it uses less digits than its factorization.

525346139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20889.

The product of its digits is 97200, while the sum is 38.

The square root of 525346139 is about 22920.4306024123. The cubic root of 525346139 is about 806.8915763099.

The spelling of 525346139 in words is "five hundred twenty-five million, three hundred forty-six thousand, one hundred thirty-nine".