2155095 has 24 divisors (see below), whose sum is σ = 3787056. Its totient is φ = 1133568.

The previous prime is 2155079. The next prime is 2155103. The reversal of 2155095 is 5905512.

2155095 is a `hidden beast` number, since 21 + 550 + 95 = 666.

It is not a de Polignac number, because 2155095 - 2⁴ = 2155079 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3447 + ... + 4023.

It is an arithmetic number, because the mean of its divisors is an integer number (157794).

2^2155095 is an apocalyptic number.

2155095 is a deficient number, since it is larger than the sum of its proper divisors (1631961).

2155095 is a wasteful number, since it uses less digits than its factorization.

2155095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 2155095 is about 1468.0241823621. The cubic root of 2155095 is about 129.1681600012.

The spelling of 2155095 in words is "two million, one hundred fifty-five thousand, ninety-five".