249412653 has 12 divisors (see below), whose sum is σ = 411728928. Its totient is φ = 142521480.

The previous prime is 249412651. The next prime is 249412679. The reversal of 249412653 is 356214942.

It is a happy number.

It is not a de Polignac number, because 249412653 - 2¹ = 249412651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249412651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1979403 + ... + 1979528.

It is an arithmetic number, because the mean of its divisors is an integer number (34310744).

Almost surely, 2^249412653 is an apocalyptic number.

It is an amenable number.

249412653 is a deficient number, since it is larger than the sum of its proper divisors (162316275).

249412653 is a wasteful number, since it uses less digits than its factorization.

249412653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958944 (or 3958941 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 249412653 is about 15792.8038359248. The cubic root of 249412653 is about 629.4667975270.

The spelling of 249412653 in words is "two hundred forty-nine million, four hundred twelve thousand, six hundred fifty-three".