249253454109 has 8 divisors (see below), whose sum is σ = 362550478752. Its totient is φ = 151062699440.

The previous prime is 249253454089. The next prime is 249253454137. The reversal of 249253454109 is 901454352942.

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 249253454109 - 2¹⁵ = 249253421341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249253454309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3776567454 + ... + 3776567519.

It is an arithmetic number, because the mean of its divisors is an integer number (45318809844).

Almost surely, 2^249253454109 is an apocalyptic number.

It is an amenable number.

249253454109 is a deficient number, since it is larger than the sum of its proper divisors (113297024643).

249253454109 is a wasteful number, since it uses less digits than its factorization.

249253454109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7553134987.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 249253454109 in words is "two hundred forty-nine billion, two hundred fifty-three million, four hundred fifty-four thousand, one hundred nine".