275189531 has 2 divisors, whose sum is σ = 275189532. Its totient is φ = 275189530.

The previous prime is 275189527. The next prime is 275189561. The reversal of 275189531 is 135981572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 275189531 - 2² = 275189527 is a prime.

It is a super-2 number, since 2×275189531² = 151458555943999922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (275189501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137594765 + 137594766.

It is an arithmetic number, because the mean of its divisors is an integer number (137594766).

Almost surely, 2^275189531 is an apocalyptic number.

275189531 is a deficient number, since it is larger than the sum of its proper divisors (1).

275189531 is an equidigital number, since it uses as much as digits as its factorization.

275189531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 41.

The square root of 275189531 is about 16588.8375421547. The cubic root of 275189531 is about 650.4450845100.

The spelling of 275189531 in words is "two hundred seventy-five million, one hundred eighty-nine thousand, five hundred thirty-one".