250130917 has 4 divisors (see below), whose sum is σ = 251930560. Its totient is φ = 248331276.

The previous prime is 250130891. The next prime is 250130929. The reversal of 250130917 is 719031052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250130917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250130977) 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, 899613 + ... + 899890.

It is an arithmetic number, because the mean of its divisors is an integer number (62982640).

Almost surely, 2^250130917 is an apocalyptic number.

It is an amenable number.

250130917 is a deficient number, since it is larger than the sum of its proper divisors (1799643).

250130917 is a wasteful number, since it uses less digits than its factorization.

250130917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799642.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 250130917 is about 15815.5277180371. The cubic root of 250130917 is about 630.0704691476.

Adding to 250130917 its reverse (719031052), we get a palindrome (969161969).

The spelling of 250130917 in words is "two hundred fifty million, one hundred thirty thousand, nine hundred seventeen".