30152131 has 2 divisors, whose sum is σ = 30152132. Its totient is φ = 30152130.

The previous prime is 30152123. The next prime is 30152147. The reversal of 30152131 is 13125103.

It is an a-pointer prime, because the next prime (30152147) can be obtained adding 30152131 to its sum of digits (16).

It is a weak prime.

It is an emirp because it is prime and its reverse (13125103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30152131 - 2³ = 30152123 is a prime.

It is a super-2 number, since 2×30152131² = 1818302007682322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30152191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15076065 + 15076066.

It is an arithmetic number, because the mean of its divisors is an integer number (15076066).

Almost surely, 2^30152131 is an apocalyptic number.

30152131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30152131 is an equidigital number, since it uses as much as digits as its factorization.

30152131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 30152131 is about 5491.0956101674. The cubic root of 30152131 is about 311.2475945901.

Adding to 30152131 its reverse (13125103), we get a palindrome (43277234).

The spelling of 30152131 in words is "thirty million, one hundred fifty-two thousand, one hundred thirty-one".