249115953 has 8 divisors (see below), whose sum is σ = 338421888. Its totient is φ = 162943664.

The previous prime is 249115901. The next prime is 249115957. The reversal of 249115953 is 359511942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 249115953 - 2¹⁴ = 249099569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249115957) 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, 783225 + ... + 783542.

It is an arithmetic number, because the mean of its divisors is an integer number (42302736).

Almost surely, 2^249115953 is an apocalyptic number.

It is an amenable number.

249115953 is a deficient number, since it is larger than the sum of its proper divisors (89305935).

249115953 is a wasteful number, since it uses less digits than its factorization.

249115953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566823.

The product of its digits is 48600, while the sum is 39.

The square root of 249115953 is about 15783.4075218249. The cubic root of 249115953 is about 629.2170950053.

The spelling of 249115953 in words is "two hundred forty-nine million, one hundred fifteen thousand, nine hundred fifty-three".