269406931 has 2 divisors, whose sum is σ = 269406932. Its totient is φ = 269406930.

The previous prime is 269406913. The next prime is 269406959. The reversal of 269406931 is 139604962.

Together with previous prime (269406913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 269406931 - 2¹⁷ = 269275859 is a prime.

It is a super-2 number, since 2×269406931² = 145160188941677522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (269406031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134703465 + 134703466.

It is an arithmetic number, because the mean of its divisors is an integer number (134703466).

Almost surely, 2^269406931 is an apocalyptic number.

269406931 is a deficient number, since it is larger than the sum of its proper divisors (1).

269406931 is an equidigital number, since it uses as much as digits as its factorization.

269406931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 40.

The square root of 269406931 is about 16413.6202892598. The cubic root of 269406931 is about 645.8568273419.

The spelling of 269406931 in words is "two hundred sixty-nine million, four hundred six thousand, nine hundred thirty-one".