250213121 has 8 divisors (see below), whose sum is σ = 261825024. Its totient is φ = 238822560.

The previous prime is 250213111. The next prime is 250213127. The reversal of 250213121 is 121312052.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250213121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 250213121.

It is not an unprimeable number, because it can be changed into a prime (250213127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53021 + ... + 57546.

It is an arithmetic number, because the mean of its divisors is an integer number (32728128).

Almost surely, 2^250213121 is an apocalyptic number.

It is an amenable number.

250213121 is a deficient number, since it is larger than the sum of its proper divisors (11611903).

250213121 is a wasteful number, since it uses less digits than its factorization.

250213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110671.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 250213121 is about 15818.1263429017. The cubic root of 250213121 is about 630.1394845264.

Adding to 250213121 its reverse (121312052), we get a palindrome (371525173).

The spelling of 250213121 in words is "two hundred fifty million, two hundred thirteen thousand, one hundred twenty-one".