325151021 has 8 divisors (see below), whose sum is σ = 351271704. Its totient is φ = 299188800.

The previous prime is 325151011. The next prime is 325151041. The reversal of 325151021 is 120151523.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8702500 + 316448521 = 2950^2 + 17789^2 .

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 325151021 - 2¹⁰ = 325149997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 325150984 and 325151002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325151011) 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, 35330 + ... + 43571.

It is an arithmetic number, because the mean of its divisors is an integer number (43908963).

Almost surely, 2^325151021 is an apocalyptic number.

It is an amenable number.

325151021 is a deficient number, since it is larger than the sum of its proper divisors (26120683).

325151021 is a wasteful number, since it uses less digits than its factorization.

325151021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79231.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 325151021 is about 18031.9444597636. The cubic root of 325151021 is about 687.6409115462.

The spelling of 325151021 in words is "three hundred twenty-five million, one hundred fifty-one thousand, twenty-one".