249383081 has 16 divisors (see below), whose sum is σ = 272284416. Its totient is φ = 227494656.

The previous prime is 249383077. The next prime is 249383087. The reversal of 249383081 is 180383942.

It is a cyclic number.

It is not a de Polignac number, because 249383081 - 2² = 249383077 is a prime.

It is a super-2 number, since 2×249383081² = 124383842178105122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249383087) 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, 84035 + ... + 86951.

It is an arithmetic number, because the mean of its divisors is an integer number (17017776).

Almost surely, 2^249383081 is an apocalyptic number.

It is an amenable number.

249383081 is a deficient number, since it is larger than the sum of its proper divisors (22901335).

249383081 is a wasteful number, since it uses less digits than its factorization.

249383081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 249383081 is about 15791.8675589684. The cubic root of 249383081 is about 629.4419186397.

The spelling of 249383081 in words is "two hundred forty-nine million, three hundred eighty-three thousand, eighty-one".