249048069 has 8 divisors (see below), whose sum is σ = 332146080. Its totient is φ = 165991056.

The previous prime is 249048061. The next prime is 249048103. The reversal of 249048069 is 960840942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 249048069 - 2³ = 249048061 is a prime.

It is a super-2 number, since 2×249048069² = 124049881345257522, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 249048069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249048061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9202 + ... + 24140.

It is an arithmetic number, because the mean of its divisors is an integer number (41518260).

Almost surely, 2^249048069 is an apocalyptic number.

It is an amenable number.

249048069 is a deficient number, since it is larger than the sum of its proper divisors (83098011).

249048069 is a wasteful number, since it uses less digits than its factorization.

249048069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20499.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 249048069 is about 15781.2568891074. The cubic root of 249048069 is about 629.1599360088.

The spelling of 249048069 in words is "two hundred forty-nine million, forty-eight thousand, sixty-nine".