249133347 has 8 divisors (see below), whose sum is σ = 369086480. Its totient is φ = 166088880.

The previous prime is 249133327. The next prime is 249133387. The reversal of 249133347 is 743331942.

It is not a de Polignac number, because 249133347 - 2⁷ = 249133219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249133327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4613554 + ... + 4613607.

It is an arithmetic number, because the mean of its divisors is an integer number (46135810).

Almost surely, 2^249133347 is an apocalyptic number.

249133347 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

249133347 is a deficient number, since it is larger than the sum of its proper divisors (119953133).

249133347 is an equidigital number, since it uses as much as digits as its factorization.

249133347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9227170 (or 9227164 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 249133347 is about 15783.9585339040. The cubic root of 249133347 is about 629.2317392534.

The spelling of 249133347 in words is "two hundred forty-nine million, one hundred thirty-three thousand, three hundred forty-seven".