30903053 has 8 divisors (see below), whose sum is σ = 33034176. Its totient is φ = 28837600.

The previous prime is 30903043. The next prime is 30903073. The reversal of 30903053 is 35030903.

It is a happy number.

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 30903053 - 2²⁰ = 29854477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30903043) 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, 15443 + ... + 17328.

It is an arithmetic number, because the mean of its divisors is an integer number (4129272).

Almost surely, 2^30903053 is an apocalyptic number.

It is an amenable number.

30903053 is a deficient number, since it is larger than the sum of its proper divisors (2131123).

30903053 is a wasteful number, since it uses less digits than its factorization.

30903053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32835.

The product of its (nonzero) digits is 1215, while the sum is 23.

The square root of 30903053 is about 5559.0514478641. The cubic root of 30903053 is about 313.8102529214.

Adding to 30903053 its reverse (35030903), we get a palindrome (65933956).

The spelling of 30903053 in words is "thirty million, nine hundred three thousand, fifty-three".