249121046 has 24 divisors (see below), whose sum is σ = 395843760. Its totient is φ = 117568656.

The previous prime is 249121031. The next prime is 249121051. The reversal of 249121046 is 640121942.

249121046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×249121046² = 124122591120268232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280415 + ... + 281301.

It is an arithmetic number, because the mean of its divisors is an integer number (16493490).

Almost surely, 2^249121046 is an apocalyptic number.

249121046 is a deficient number, since it is larger than the sum of its proper divisors (146722714).

249121046 is a wasteful number, since it uses less digits than its factorization.

249121046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 249121046 is about 15783.5688613190. The cubic root of 249121046 is about 629.2213829427.

Adding to 249121046 its reverse (640121942), we get a palindrome (889242988).

The spelling of 249121046 in words is "two hundred forty-nine million, one hundred twenty-one thousand, forty-six".