30825231 has 8 divisors (see below), whose sum is σ = 42517680. Its totient is φ = 19841472.

The previous prime is 30825229. The next prime is 30825241. The reversal of 30825231 is 13252803.

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

It is not a de Polignac number, because 30825231 - 2¹ = 30825229 is a prime.

It is a super-2 number, since 2×30825231² = 1900389732406722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30825211) 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, 177070 + ... + 177243.

It is an arithmetic number, because the mean of its divisors is an integer number (5314710).

Almost surely, 2^30825231 is an apocalyptic number.

30825231 is a deficient number, since it is larger than the sum of its proper divisors (11692449).

30825231 is a wasteful number, since it uses less digits than its factorization.

30825231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354345.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 30825231 is about 5552.0474601718. The cubic root of 30825231 is about 313.5466126265.

The spelling of 30825231 in words is "thirty million, eight hundred twenty-five thousand, two hundred thirty-one".