30117051 has 36 divisors (see below), whose sum is σ = 47284848. Its totient is φ = 18435648.

The previous prime is 30117049. The next prime is 30117067. The reversal of 30117051 is 15071103.

It is a happy number.

It is not a de Polignac number, because 30117051 - 2¹ = 30117049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30117011) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 174001 + ... + 174173.

It is an arithmetic number, because the mean of its divisors is an integer number (1313468).

Almost surely, 2^30117051 is an apocalyptic number.

30117051 is a deficient number, since it is larger than the sum of its proper divisors (17167797).

30117051 is a wasteful number, since it uses less digits than its factorization.

30117051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 18.

The square root of 30117051 is about 5487.9004181927. The cubic root of 30117051 is about 311.1268424538.

Adding to 30117051 its reverse (15071103), we get a palindrome (45188154).

The spelling of 30117051 in words is "thirty million, one hundred seventeen thousand, fifty-one".