249121942 has 8 divisors (see below), whose sum is σ = 380733696. Its totient is φ = 122210712.

The previous prime is 249121937. The next prime is 249121973.

It is a happy number.

249121942 is nontrivially palindromic in base 10.

249121942 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 249121898 and 249121907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1174998 + ... + 1175209.

It is an arithmetic number, because the mean of its divisors is an integer number (47591712).

Almost surely, 2^249121942 is an apocalyptic number.

249121942 is a deficient number, since it is larger than the sum of its proper divisors (131611754).

249121942 is a wasteful number, since it uses less digits than its factorization.

249121942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350262.

The product of its digits is 10368, while the sum is 34.

The square root of 249121942 is about 15783.5972452417. The cubic root of 249121942 is about 629.2221373038. Note that the first 3 decimals are identical.

The spelling of 249121942 in words is "two hundred forty-nine million, one hundred twenty-one thousand, nine hundred forty-two".