30135131 has 32 divisors (see below), whose sum is σ = 35954688. Its totient is φ = 25038720.

The previous prime is 30135113. The next prime is 30135139. The reversal of 30135131 is 13153103.

It is a cyclic number.

It is not a de Polignac number, because 30135131 - 2¹⁰ = 30134107 is a prime.

It is a super-2 number, since 2×30135131² = 1816252240774322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30135139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 641150 + ... + 641196.

It is an arithmetic number, because the mean of its divisors is an integer number (1123584).

Almost surely, 2^30135131 is an apocalyptic number.

30135131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30135131 is a deficient number, since it is larger than the sum of its proper divisors (5819557).

30135131 is a wasteful number, since it uses less digits than its factorization.

30135131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 30135131 is about 5489.5474312551. The cubic root of 30135131 is about 311.1890890091.

Adding to 30135131 its reverse (13153103), we get a palindrome (43288234).

The spelling of 30135131 in words is "thirty million, one hundred thirty-five thousand, one hundred thirty-one".