249996146 has 8 divisors (see below), whose sum is σ = 376329564. Its totient is φ = 124552960.

The previous prime is 249996143. The next prime is 249996193. The reversal of 249996146 is 641699942.

249996146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 249166225 + 829921 = 15785^2 + 911^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 249996094 and 249996103.

It is not an unprimeable number, because it can be changed into a prime (249996143) 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, 221855 + ... + 222978.

Almost surely, 2^249996146 is an apocalyptic number.

249996146 is a deficient number, since it is larger than the sum of its proper divisors (126333418).

249996146 is a wasteful number, since it uses less digits than its factorization.

249996146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445116.

The product of its digits is 839808, while the sum is 50.

The square root of 249996146 is about 15811.2664261912. The cubic root of 249996146 is about 629.9572877737.

The spelling of 249996146 in words is "two hundred forty-nine million, nine hundred ninety-six thousand, one hundred forty-six".