325140981 has 16 divisors (see below), whose sum is σ = 473264640. Its totient is φ = 196916720.

The previous prime is 325140973. The next prime is 325140983. The reversal of 325140981 is 189041523.

It is not a de Polignac number, because 325140981 - 2³ = 325140973 is a prime.

It is a super-2 number, since 2×325140981² = 211433315051284722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325140983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63640 + ... + 68558.

It is an arithmetic number, because the mean of its divisors is an integer number (29579040).

Almost surely, 2^325140981 is an apocalyptic number.

It is an amenable number.

325140981 is a deficient number, since it is larger than the sum of its proper divisors (148123659).

325140981 is a wasteful number, since it uses less digits than its factorization.

325140981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6936.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 325140981 is about 18031.6660627908. Note that the first 3 decimals coincide. The cubic root of 325140981 is about 687.6338338240.

The spelling of 325140981 in words is "three hundred twenty-five million, one hundred forty thousand, nine hundred eighty-one".