30161269 has 2 divisors, whose sum is σ = 30161270. Its totient is φ = 30161268.

The previous prime is 30161249. The next prime is 30161279. The reversal of 30161269 is 96216103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27144100 + 3017169 = 5210^2 + 1737^2 .

It is a cyclic number.

It is not a de Polignac number, because 30161269 - 2⁷ = 30161141 is a prime.

It is a super-2 number, since 2×30161269² = 1819404295380722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30161249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15080634 + 15080635.

It is an arithmetic number, because the mean of its divisors is an integer number (15080635).

Almost surely, 2^30161269 is an apocalyptic number.

It is an amenable number.

30161269 is a deficient number, since it is larger than the sum of its proper divisors (1).

30161269 is an equidigital number, since it uses as much as digits as its factorization.

30161269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 30161269 is about 5491.9276215187. The cubic root of 30161269 is about 311.2790339738.

The spelling of 30161269 in words is "thirty million, one hundred sixty-one thousand, two hundred sixty-nine".