1725149881 has 8 divisors (see below), whose sum is σ = 2123261504. Its totient is φ = 1364953680.

The previous prime is 1725149813. The next prime is 1725149929. The reversal of 1725149881 is 1889415271.

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

It is a cyclic number.

It is not a de Polignac number, because 1725149881 - 2¹⁷ = 1725018809 is a prime.

It is a super-2 number, since 2×1725149881² = 5952284223828628322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1725149081) 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, 9478755 + ... + 9478936.

It is an arithmetic number, because the mean of its divisors is an integer number (265407688).

Almost surely, 2^1725149881 is an apocalyptic number.

It is an amenable number.

1725149881 is a deficient number, since it is larger than the sum of its proper divisors (398111623).

1725149881 is a wasteful number, since it uses less digits than its factorization.

1725149881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18957711.

The product of its digits is 161280, while the sum is 46.

The square root of 1725149881 is about 41534.9236306027. The cubic root of 1725149881 is about 1199.3398871739.

The spelling of 1725149881 in words is "one billion, seven hundred twenty-five million, one hundred forty-nine thousand, eight hundred eighty-one".