249061355 has 8 divisors (see below), whose sum is σ = 298958352. Its totient is φ = 199192608.

The previous prime is 249061349. The next prime is 249061369. The reversal of 249061355 is 553160942.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249061355 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30797 + ... + 38033.

It is an arithmetic number, because the mean of its divisors is an integer number (37369794).

Almost surely, 2^249061355 is an apocalyptic number.

249061355 is a deficient number, since it is larger than the sum of its proper divisors (49896997).

249061355 is an equidigital number, since it uses as much as digits as its factorization.

249061355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14125.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 249061355 is about 15781.6778258840. The cubic root of 249061355 is about 629.1711237690.

The spelling of 249061355 in words is "two hundred forty-nine million, sixty-one thousand, three hundred fifty-five".