2155930229 has 8 divisors (see below), whose sum is σ = 2197843200. Its totient is φ = 2114396896.

The previous prime is 2155930223. The next prime is 2155930241. The reversal of 2155930229 is 9220395512.

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 2155930229 - 2⁴ = 2155930213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2155930192 and 2155930201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155930223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83429 + ... + 106170.

It is an arithmetic number, because the mean of its divisors is an integer number (274730400).

Almost surely, 2^2155930229 is an apocalyptic number.

It is an amenable number.

2155930229 is a deficient number, since it is larger than the sum of its proper divisors (41912971).

2155930229 is a wasteful number, since it uses less digits than its factorization.

2155930229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189819.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 2155930229 is about 46431.9957464678. The cubic root of 2155930229 is about 1291.8484465764.

The spelling of 2155930229 in words is "two billion, one hundred fifty-five million, nine hundred thirty thousand, two hundred twenty-nine".