250289139 has 8 divisors (see below), whose sum is σ = 334018960. Its totient is φ = 166709376.

The previous prime is 250289119. The next prime is 250289159. The reversal of 250289139 is 931982052.

It is an interprime number because it is at equal distance from previous prime (250289119) and next prime (250289159).

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

It is not a de Polignac number, because 250289139 - 2⁵ = 250289107 is a prime.

It is a super-2 number, since 2×250289139² = 125289306202722642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 250289097 and 250289106.

It is not an unprimeable number, because it can be changed into a prime (250289119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33562 + ... + 40335.

It is an arithmetic number, because the mean of its divisors is an integer number (41752370).

Almost surely, 2^250289139 is an apocalyptic number.

250289139 is a deficient number, since it is larger than the sum of its proper divisors (83729821).

250289139 is a wasteful number, since it uses less digits than its factorization.

250289139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75029.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 250289139 is about 15820.5290366663. The cubic root of 250289139 is about 630.2032929215.

The spelling of 250289139 in words is "two hundred fifty million, two hundred eighty-nine thousand, one hundred thirty-nine".