249190011 has 24 divisors (see below), whose sum is σ = 425549280. Its totient is φ = 137483136.

The previous prime is 249189991. The next prime is 249190013. The reversal of 249190011 is 110091942.

It is not a de Polignac number, because 249190011 - 2⁵ = 249189979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249190013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66370 + ... + 70023.

It is an arithmetic number, because the mean of its divisors is an integer number (17731220).

Almost surely, 2^249190011 is an apocalyptic number.

249190011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

249190011 is a deficient number, since it is larger than the sum of its proper divisors (176359269).

249190011 is a wasteful number, since it uses less digits than its factorization.

249190011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136435 (or 136432 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 249190011 is about 15785.7534188267. The cubic root of 249190011 is about 629.2794407285.

The spelling of 249190011 in words is "two hundred forty-nine million, one hundred ninety thousand, eleven".