249072953 has 4 divisors (see below), whose sum is σ = 249153780. Its totient is φ = 248992128.

The previous prime is 249072913. The next prime is 249072959. The reversal of 249072953 is 359270942.

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 149132944 + 99940009 = 12212^2 + 9997^2 .

It is a cyclic number.

It is not a de Polignac number, because 249072953 - 2⁸ = 249072697 is a prime.

It is a super-2 number, since 2×249072953² = 124074671832280418, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 249072953.

It is not an unprimeable number, because it can be changed into a prime (249072959) 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, 35600 + ... + 42017.

It is an arithmetic number, because the mean of its divisors is an integer number (62288445).

Almost surely, 2^249072953 is an apocalyptic number.

It is an amenable number.

249072953 is a deficient number, since it is larger than the sum of its proper divisors (80827).

249072953 is an equidigital number, since it uses as much as digits as its factorization.

249072953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80826.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 249072953 is about 15782.0452730310. The cubic root of 249072953 is about 629.1808897876.

The spelling of 249072953 in words is "two hundred forty-nine million, seventy-two thousand, nine hundred fifty-three".