525144353139 has 72 divisors (see below), whose sum is σ = 948820454400. Its totient is φ = 284288339952.

The previous prime is 525144353093. The next prime is 525144353147. The reversal of 525144353139 is 931353441525.

525144353139 is a `hidden beast` number, since 5 + 25 + 1 + 443 + 53 + 139 = 666.

It is not a de Polignac number, because 525144353139 - 2⁹ = 525144352627 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 525144353094 and 525144353103.

It is not an unprimeable number, because it can be changed into a prime (525144353639) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 186462 + ... + 1041660.

Almost surely, 2^525144353139 is an apocalyptic number.

525144353139 is a deficient number, since it is larger than the sum of its proper divisors (423676101261).

525144353139 is an equidigital number, since it uses as much as digits as its factorization.

525144353139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855259 (or 855228 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

The spelling of 525144353139 in words is "five hundred twenty-five billion, one hundred forty-four million, three hundred fifty-three thousand, one hundred thirty-nine".