1725139233 has 12 divisors (see below), whose sum is σ = 2501134740. Its totient is φ = 1145815776.

The previous prime is 1725139201. The next prime is 1725139253. The reversal of 1725139233 is 3329315271.

It is a happy number.

1725139233 is a `hidden beast` number, since 17 + 251 + 392 + 3 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 157929489 + 1567209744 = 12567^2 + 39588^2 .

It is not a de Polignac number, because 1725139233 - 2⁵ = 1725139201 is a prime.

It is a super-2 number, since 2×1725139233² = 5952210746471656578, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1725139253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 353866 + ... + 358707.

It is an arithmetic number, because the mean of its divisors is an integer number (208427895).

Almost surely, 2^1725139233 is an apocalyptic number.

It is an amenable number.

1725139233 is a deficient number, since it is larger than the sum of its proper divisors (775995507).

1725139233 is a wasteful number, since it uses less digits than its factorization.

1725139233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712848 (or 712845 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 1725139233 is about 41534.7954491171. The cubic root of 1725139233 is about 1199.3374196401.

The spelling of 1725139233 in words is "one billion, seven hundred twenty-five million, one hundred thirty-nine thousand, two hundred thirty-three".