2159551429 has 8 divisors (see below), whose sum is σ = 2613238848. Its totient is φ = 1742159040.

The previous prime is 2159551423. The next prime is 2159551477. The reversal of 2159551429 is 9241559512.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2159551429 - 2²⁵ = 2125996997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2159551423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9073627 + ... + 9073864.

It is an arithmetic number, because the mean of its divisors is an integer number (326654856).

Almost surely, 2^2159551429 is an apocalyptic number.

It is an amenable number.

2159551429 is a deficient number, since it is larger than the sum of its proper divisors (453687419).

2159551429 is a wasteful number, since it uses less digits than its factorization.

2159551429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18147515.

The product of its digits is 162000, while the sum is 43.

The square root of 2159551429 is about 46470.9740483240. The cubic root of 2159551429 is about 1292.5713247756.

The spelling of 2159551429 in words is "two billion, one hundred fifty-nine million, five hundred fifty-one thousand, four hundred twenty-nine".