270131993 has 2 divisors, whose sum is σ = 270131994. Its totient is φ = 270131992.

The previous prime is 270131971. The next prime is 270132011. The reversal of 270131993 is 399131072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255904009 + 14227984 = 15997^2 + 3772^2 .

It is a cyclic number.

It is not a de Polignac number, because 270131993 - 2¹⁶ = 270066457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (270131963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135065996 + 135065997.

It is an arithmetic number, because the mean of its divisors is an integer number (135065997).

Almost surely, 2^270131993 is an apocalyptic number.

It is an amenable number.

270131993 is a deficient number, since it is larger than the sum of its proper divisors (1).

270131993 is an equidigital number, since it uses as much as digits as its factorization.

270131993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 270131993 is about 16435.6926534905. The cubic root of 270131993 is about 646.4357121841.

The spelling of 270131993 in words is "two hundred seventy million, one hundred thirty-one thousand, nine hundred ninety-three".