249115106 has 4 divisors (see below), whose sum is σ = 373672662. Its totient is φ = 124557552.

The previous prime is 249115103. The next prime is 249115123. The reversal of 249115106 is 601511942.

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., 245079025 + 4036081 = 15655^2 + 2009^2 .

It is not an unprimeable number, because it can be changed into a prime (249115103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62278775 + ... + 62278778.

Almost surely, 2^249115106 is an apocalyptic number.

249115106 is a deficient number, since it is larger than the sum of its proper divisors (124557556).

249115106 is a wasteful number, since it uses less digits than its factorization.

249115106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124557555.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 249115106 is about 15783.3806898269. The cubic root of 249115106 is about 629.2163818870.

The spelling of 249115106 in words is "two hundred forty-nine million, one hundred fifteen thousand, one hundred six".