249494901 has 16 divisors (see below), whose sum is σ = 340893696. Its totient is φ = 162224496.

The previous prime is 249494899. The next prime is 249494911. The reversal of 249494901 is 109494942.

It is not a de Polignac number, because 249494901 - 2¹ = 249494899 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249494911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149196 + ... + 150858.

It is an arithmetic number, because the mean of its divisors is an integer number (21305856).

Almost surely, 2^249494901 is an apocalyptic number.

It is an amenable number.

249494901 is a deficient number, since it is larger than the sum of its proper divisors (91398795).

249494901 is a wasteful number, since it uses less digits than its factorization.

249494901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 249494901 is about 15795.4075920819. The cubic root of 249494901 is about 629.5359823293.

The spelling of 249494901 in words is "two hundred forty-nine million, four hundred ninety-four thousand, nine hundred one".