249475267 has 2 divisors, whose sum is σ = 249475268. Its totient is φ = 249475266.

The previous prime is 249475253. The next prime is 249475309. The reversal of 249475267 is 762574942.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249475267 - 2²⁷ = 115257539 is a prime.

It is not a weakly prime, because it can be changed into another prime (249475067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124737633 + 124737634.

It is an arithmetic number, because the mean of its divisors is an integer number (124737634).

Almost surely, 2^249475267 is an apocalyptic number.

249475267 is a deficient number, since it is larger than the sum of its proper divisors (1).

249475267 is an equidigital number, since it uses as much as digits as its factorization.

249475267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 46.

The square root of 249475267 is about 15794.7860700929. The cubic root of 249475267 is about 629.5194681191.

The spelling of 249475267 in words is "two hundred forty-nine million, four hundred seventy-five thousand, two hundred sixty-seven".