2153694 has 16 divisors (see below), whose sum is σ = 4446720. Its totient is φ = 694680.

The previous prime is 2153693. The next prime is 2153699. The reversal of 2153694 is 4963512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5604 + ... + 5975.

It is an arithmetic number, because the mean of its divisors is an integer number (277920).

2^2153694 is an apocalyptic number.

2153694 is an abundant number, since it is smaller than the sum of its proper divisors (2293026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2153694 is a wasteful number, since it uses less digits than its factorization.

2153694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11615.

The product of its digits is 6480, while the sum is 30.

The square root of 2153694 is about 1467.5469328100. The cubic root of 2153694 is about 129.1401637380.

The spelling of 2153694 in words is "two million, one hundred fifty-three thousand, six hundred ninety-four".