250145 has 12 divisors (see below), whose sum is σ = 349524. Its totient is φ = 171360.

The previous prime is 250123. The next prime is 250147. The reversal of 250145 is 541052.

It can be written as a sum of positive squares in 2 ways, for example, as 117649 + 132496 = 343^2 + 364^2 .

It is not a de Polignac number, because 250145 - 2¹² = 246049 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266 + ... + 755.

It is an arithmetic number, because the mean of its divisors is an integer number (29127).

2²⁵⁰¹⁴⁵ is an apocalyptic number.

It is an amenable number.

250145 is a deficient number, since it is larger than the sum of its proper divisors (99379).

250145 is a wasteful number, since it uses less digits than its factorization.

250145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 250145 is about 500.1449789811. The cubic root of 250145 is about 63.0082293777.

Adding to 250145 its reverse (541052), we get a palindrome (791197).

The spelling of 250145 in words is "two hundred fifty thousand, one hundred forty-five".