2151695 has 16 divisors (see below), whose sum is σ = 3178560. Its totient is φ = 1361664.

The previous prime is 2151683. The next prime is 2151701. The reversal of 2151695 is 5961512.

It is a cyclic number.

It is not a de Polignac number, because 2151695 - 2¹⁰ = 2150671 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1910 + ... + 2819.

It is an arithmetic number, because the mean of its divisors is an integer number (198660).

2^2151695 is an apocalyptic number.

2151695 is a deficient number, since it is larger than the sum of its proper divisors (1026865).

2151695 is a wasteful number, since it uses less digits than its factorization.

2151695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754.

The product of its digits is 2700, while the sum is 29.

The square root of 2151695 is about 1466.8657061913. The cubic root of 2151695 is about 129.1001965780.

The spelling of 2151695 in words is "two million, one hundred fifty-one thousand, six hundred ninety-five".