249247106 has 4 divisors (see below), whose sum is σ = 373870662. Its totient is φ = 124623552.

The previous prime is 249247069. The next prime is 249247123. The reversal of 249247106 is 601742942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 169234081 + 80013025 = 13009^2 + 8945^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62311775 + ... + 62311778.

Almost surely, 2^249247106 is an apocalyptic number.

249247106 is a deficient number, since it is larger than the sum of its proper divisors (124623556).

249247106 is a wasteful number, since it uses less digits than its factorization.

249247106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124623555.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 249247106 is about 15787.5617496813. The cubic root of 249247106 is about 629.3274977190.

The spelling of 249247106 in words is "two hundred forty-nine million, two hundred forty-seven thousand, one hundred six".