30145131 has 24 divisors (see below), whose sum is σ = 46753200. Its totient is φ = 18648576.

The previous prime is 30145081. The next prime is 30145133. The reversal of 30145131 is 13154103.

It is not a de Polignac number, because 30145131 - 2⁶ = 30145067 is a prime.

It is a super-2 number, since 2×30145131² = 1817457846014322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30145133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9820 + ... + 12518.

It is an arithmetic number, because the mean of its divisors is an integer number (1948050).

Almost surely, 2^30145131 is an apocalyptic number.

30145131 is a deficient number, since it is larger than the sum of its proper divisors (16608069).

30145131 is a wasteful number, since it uses less digits than its factorization.

30145131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795 (or 2792 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 30145131 is about 5490.4581776023. The cubic root of 30145131 is about 311.2235067206.

Adding to 30145131 its reverse (13154103), we get a palindrome (43299234).

It can be divided in two parts, 30145 and 131, that added together give a square (30276 = 174²).

The spelling of 30145131 in words is "thirty million, one hundred forty-five thousand, one hundred thirty-one".