249548363121 has 8 divisors (see below), whose sum is σ = 334964246400. Its totient is φ = 165249027632.

The previous prime is 249548363117. The next prime is 249548363123. The reversal of 249548363121 is 121363845942.

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 249548363121 - 2² = 249548363117 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (249548363123) 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, 279136425 + ... + 279137318.

It is an arithmetic number, because the mean of its divisors is an integer number (41870530800).

Almost surely, 2^249548363121 is an apocalyptic number.

It is an amenable number.

249548363121 is a deficient number, since it is larger than the sum of its proper divisors (85415883279).

249548363121 is a wasteful number, since it uses less digits than its factorization.

249548363121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558273895.

The product of its digits is 1244160, while the sum is 48.

The spelling of 249548363121 in words is "two hundred forty-nine billion, five hundred forty-eight million, three hundred sixty-three thousand, one hundred twenty-one".