30534231 has 16 divisors (see below), whose sum is σ = 50107904. Its totient is φ = 16105824.

The previous prime is 30534169. The next prime is 30534233. The reversal of 30534231 is 13243503.

It is not a de Polignac number, because 30534231 - 2⁶ = 30534167 is a prime.

It is a super-2 number, since 2×30534231² = 1864678525522722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 30534198 and 30534207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30534233) 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, 55651 + ... + 56196.

It is an arithmetic number, because the mean of its divisors is an integer number (3131744).

Almost surely, 2^30534231 is an apocalyptic number.

30534231 is a deficient number, since it is larger than the sum of its proper divisors (19573673).

30534231 is a wasteful number, since it uses less digits than its factorization.

30534231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111870.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 30534231 is about 5525.7787686443. The cubic root of 30534231 is about 312.5568314773.

Adding to 30534231 its reverse (13243503), we get a palindrome (43777734).

The spelling of 30534231 in words is "thirty million, five hundred thirty-four thousand, two hundred thirty-one".