250140146 has 4 divisors (see below), whose sum is σ = 375210222. Its totient is φ = 125070072.

The previous prime is 250140133. The next prime is 250140161. The reversal of 250140146 is 641041052.

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

It can be written as a sum of positive squares in only one way, i.e., 250114225 + 25921 = 15815^2 + 161^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62535035 + ... + 62535038.

Almost surely, 2^250140146 is an apocalyptic number.

250140146 is a deficient number, since it is larger than the sum of its proper divisors (125070076).

250140146 is a wasteful number, since it uses less digits than its factorization.

250140146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125070075.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 250140146 is about 15815.8194855657. The cubic root of 250140146 is about 630.0782182215.

Adding to 250140146 its reverse (641041052), we get a palindrome (891181198).

The spelling of 250140146 in words is "two hundred fifty million, one hundred forty thousand, one hundred forty-six".