1725156745 has 32 divisors (see below), whose sum is σ = 2343624192. Its totient is φ = 1209533952.

The previous prime is 1725156739. The next prime is 1725156749. The reversal of 1725156745 is 5476515271.

It is a cyclic number.

It is not a de Polignac number, because 1725156745 - 2²⁷ = 1590939017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1725156749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200604 + ... + 209026.

It is an arithmetic number, because the mean of its divisors is an integer number (73238256).

Almost surely, 2^1725156745 is an apocalyptic number.

It is an amenable number.

1725156745 is a deficient number, since it is larger than the sum of its proper divisors (618467447).

1725156745 is a wasteful number, since it uses less digits than its factorization.

1725156745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8601.

The product of its digits is 294000, while the sum is 43.

The square root of 1725156745 is about 41535.0062597804. The cubic root of 1725156745 is about 1199.3414778102.

The spelling of 1725156745 in words is "one billion, seven hundred twenty-five million, one hundred fifty-six thousand, seven hundred forty-five".