2139003250 has 32 divisors (see below), whose sum is σ = 4043907504. Its totient is φ = 847120000.

The previous prime is 2139003233. The next prime is 2139003253. The reversal of 2139003250 is 523009312.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 741963121 + 1397040129 = 27239^2 + 37377^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2139003253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17107 + ... + 67606.

Almost surely, 2^2139003250 is an apocalyptic number.

2139003250 is a deficient number, since it is larger than the sum of its proper divisors (1904904254).

2139003250 is a wasteful number, since it uses less digits than its factorization.

2139003250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84831 (or 84821 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 2139003250 is about 46249.3594550238. The cubic root of 2139003250 is about 1288.4586381688.

The spelling of 2139003250 in words is "two billion, one hundred thirty-nine million, three thousand, two hundred fifty".