2155106230 has 32 divisors (see below), whose sum is σ = 3932492256. Its totient is φ = 850258944.

The previous prime is 2155106209. The next prime is 2155106231. The reversal of 2155106230 is 326015512.

It is a junction number, because it is equal to n+sod(n) for n = 2155106195 and 2155106204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155106231) 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, 294172 + ... + 301408.

It is an arithmetic number, because the mean of its divisors is an integer number (122890383).

Almost surely, 2^2155106230 is an apocalyptic number.

2155106230 is a deficient number, since it is larger than the sum of its proper divisors (1777386026).

2155106230 is a wasteful number, since it uses less digits than its factorization.

2155106230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7648.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2155106230 is about 46423.1217175235. The cubic root of 2155106230 is about 1291.6838436194.

The spelling of 2155106230 in words is "two billion, one hundred fifty-five million, one hundred six thousand, two hundred thirty".