2155106195 has 24 divisors (see below), whose sum is σ = 2845910592. Its totient is φ = 1565527040.

The previous prime is 2155106189. The next prime is 2155106197. The reversal of 2155106195 is 5916015512.

It is not a de Polignac number, because 2155106195 - 2⁶ = 2155106131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155106197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 734822 + ... + 737748.

It is an arithmetic number, because the mean of its divisors is an integer number (118579608).

Almost surely, 2^2155106195 is an apocalyptic number.

2155106195 is a deficient number, since it is larger than the sum of its proper divisors (690804397).

2155106195 is a wasteful number, since it uses less digits than its factorization.

2155106195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4171 (or 4160 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 35.

The square root of 2155106195 is about 46423.1213405562. The cubic root of 2155106195 is about 1291.6838366269.

The spelling of 2155106195 in words is "two billion, one hundred fifty-five million, one hundred six thousand, one hundred ninety-five".