249545122 has 8 divisors (see below), whose sum is σ = 374774976. Its totient is φ = 124620132.

The previous prime is 249545117. The next prime is 249545123. The reversal of 249545122 is 221545942.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (249545123) 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, 74158 + ... + 77449.

It is an arithmetic number, because the mean of its divisors is an integer number (46846872).

Almost surely, 2^249545122 is an apocalyptic number.

249545122 is a deficient number, since it is larger than the sum of its proper divisors (125229854).

249545122 is a wasteful number, since it uses less digits than its factorization.

249545122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152432.

The product of its digits is 28800, while the sum is 34.

The square root of 249545122 is about 15796.9972463124. The cubic root of 249545122 is about 629.5782194055.

The spelling of 249545122 in words is "two hundred forty-nine million, five hundred forty-five thousand, one hundred twenty-two".