2149903387 has 2 divisors, whose sum is σ = 2149903388. Its totient is φ = 2149903386.

The previous prime is 2149903361. The next prime is 2149903397. The reversal of 2149903387 is 7833099412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2149903387 is a prime.

It is not a weakly prime, because it can be changed into another prime (2149903397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074951693 + 1074951694.

It is an arithmetic number, because the mean of its divisors is an integer number (1074951694).

Almost surely, 2^2149903387 is an apocalyptic number.

2149903387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149903387 is an equidigital number, since it uses as much as digits as its factorization.

2149903387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 2149903387 is about 46367.0506610028. The cubic root of 2149903387 is about 1290.6435478553.

The spelling of 2149903387 in words is "two billion, one hundred forty-nine million, nine hundred three thousand, three hundred eighty-seven".