249141107 has 4 divisors (see below), whose sum is σ = 251102976. Its totient is φ = 247179240.

The previous prime is 249141089. The next prime is 249141119. The reversal of 249141107 is 701141942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 249141107 - 2¹² = 249137011 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 249141107.

It is not an unprimeable number, because it can be changed into a prime (249141187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980744 + ... + 980997.

It is an arithmetic number, because the mean of its divisors is an integer number (62775744).

Almost surely, 2^249141107 is an apocalyptic number.

249141107 is a deficient number, since it is larger than the sum of its proper divisors (1961869).

249141107 is a wasteful number, since it uses less digits than its factorization.

249141107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961868.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 249141107 is about 15784.2043511860. The cubic root of 249141107 is about 629.2382722843.

The spelling of 249141107 in words is "two hundred forty-nine million, one hundred forty-one thousand, one hundred seven".