249413369 has 4 divisors (see below), whose sum is σ = 258013860. Its totient is φ = 240812880.

The previous prime is 249413347. The next prime is 249413393. The reversal of 249413369 is 963314942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84419344 + 164994025 = 9188^2 + 12845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249413369 is a prime.

It is a super-2 number, since 2×249413369² = 124414057271860322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249412369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4300202 + ... + 4300259.

It is an arithmetic number, because the mean of its divisors is an integer number (64503465).

Almost surely, 2^249413369 is an apocalyptic number.

249413369 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

249413369 is a deficient number, since it is larger than the sum of its proper divisors (8600491).

249413369 is an equidigital number, since it uses as much as digits as its factorization.

249413369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8600490.

The product of its digits is 139968, while the sum is 41.

The square root of 249413369 is about 15792.8265044608. The cubic root of 249413369 is about 629.4673998725.

The spelling of 249413369 in words is "two hundred forty-nine million, four hundred thirteen thousand, three hundred sixty-nine".