27130357 has 2 divisors, whose sum is σ = 27130358. Its totient is φ = 27130356.

The previous prime is 27130349. The next prime is 27130373. The reversal of 27130357 is 75303172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18887716 + 8242641 = 4346^2 + 2871^2 .

It is a cyclic number.

It is not a de Polignac number, because 27130357 - 2³ = 27130349 is a prime.

It is equal to p_1690705 and since 27130357 and 1690705 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27130387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13565178 + 13565179.

It is an arithmetic number, because the mean of its divisors is an integer number (13565179).

Almost surely, 2^27130357 is an apocalyptic number.

It is an amenable number.

27130357 is a deficient number, since it is larger than the sum of its proper divisors (1).

27130357 is an equidigital number, since it uses as much as digits as its factorization.

27130357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 27130357 is about 5208.6809270678. The cubic root of 27130357 is about 300.4820287831.

It can be divided in two parts, 271 and 30357, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 27130357 in words is "twenty-seven million, one hundred thirty thousand, three hundred fifty-seven".