2135154 has 32 divisors (see below), whose sum is σ = 5051520. Its totient is φ = 588672.

The previous prime is 2135153. The next prime is 2135167. The reversal of 2135154 is 4515312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2135154.

It is not an unprimeable number, because it can be changed into a prime (2135153) 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, 342 + ... + 2094.

It is an arithmetic number, because the mean of its divisors is an integer number (157860).

2^2135154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2135154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2525760).

2135154 is an abundant number, since it is smaller than the sum of its proper divisors (2916366).

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

2135154 is a wasteful number, since it uses less digits than its factorization.

2135154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794.

The product of its digits is 600, while the sum is 21.

The square root of 2135154 is about 1461.2166163851. The cubic root of 2135154 is about 128.7685290830.

The spelling of 2135154 in words is "two million, one hundred thirty-five thousand, one hundred fifty-four".