2159469191 has 16 divisors (see below), whose sum is σ = 2414942208. Its totient is φ = 1914170400.

The previous prime is 2159469181. The next prime is 2159469197. The reversal of 2159469191 is 1919649512.

It is a cyclic number.

It is not a de Polignac number, because 2159469191 - 2¹⁴ = 2159452807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159469197) 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, 132401 + ... + 147813.

It is an arithmetic number, because the mean of its divisors is an integer number (150933888).

Almost surely, 2^2159469191 is an apocalyptic number.

2159469191 is a deficient number, since it is larger than the sum of its proper divisors (255473017).

2159469191 is a wasteful number, since it uses less digits than its factorization.

2159469191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15742.

The product of its digits is 174960, while the sum is 47.

The square root of 2159469191 is about 46470.0892080056. The cubic root of 2159469191 is about 1292.5549170734.

The spelling of 2159469191 in words is "two billion, one hundred fifty-nine million, four hundred sixty-nine thousand, one hundred ninety-one".