2139090867 has 12 divisors (see below), whose sum is σ = 3090263904. Its totient is φ = 1425845520.

The previous prime is 2139090847. The next prime is 2139090871. The reversal of 2139090867 is 7680909312.

It is not a de Polignac number, because 2139090867 - 2¹² = 2139086771 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2139090847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65517 + ... + 92577.

It is an arithmetic number, because the mean of its divisors is an integer number (257521992).

Almost surely, 2^2139090867 is an apocalyptic number.

2139090867 is a deficient number, since it is larger than the sum of its proper divisors (951173037).

2139090867 is a wasteful number, since it uses less digits than its factorization.

2139090867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35850 (or 35847 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 2139090867 is about 46250.3066692536. The cubic root of 2139090867 is about 1288.4762303720.

The spelling of 2139090867 in words is "two billion, one hundred thirty-nine million, ninety thousand, eight hundred sixty-seven".