30963133 has 2 divisors, whose sum is σ = 30963134. Its totient is φ = 30963132.

The previous prime is 30963091. The next prime is 30963143. The reversal of 30963133 is 33136903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19686969 + 11276164 = 4437^2 + 3358^2 .

It is an emirp because it is prime and its reverse (33136903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30963133 - 2⁹ = 30962621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30963143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15481566 + 15481567.

It is an arithmetic number, because the mean of its divisors is an integer number (15481567).

Almost surely, 2^30963133 is an apocalyptic number.

It is an amenable number.

30963133 is a deficient number, since it is larger than the sum of its proper divisors (1).

30963133 is an equidigital number, since it uses as much as digits as its factorization.

30963133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 28.

The square root of 30963133 is about 5564.4526235740. The cubic root of 30963133 is about 314.0134854311.

It can be divided in two parts, 3096313 and 3, that added together give a triangular number (3096316 = T₂₄₈₈).

The spelling of 30963133 in words is "thirty million, nine hundred sixty-three thousand, one hundred thirty-three".