2155514 has 16 divisors (see below), whose sum is σ = 3449088. Its totient is φ = 1007952.

The previous prime is 2155513. The next prime is 2155519. The reversal of 2155514 is 4155512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 2155514.

It is not an unprimeable number, because it can be changed into a prime (2155511) 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, 1664 + ... + 2660.

It is an arithmetic number, because the mean of its divisors is an integer number (215568).

2^2155514 is an apocalyptic number.

2155514 is a deficient number, since it is larger than the sum of its proper divisors (1293574).

2155514 is a wasteful number, since it uses less digits than its factorization.

2155514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069.

The product of its digits is 1000, while the sum is 23.

The square root of 2155514 is about 1468.1668842472. The cubic root of 2155514 is about 129.1765305451.

The spelling of 2155514 in words is "two million, one hundred fifty-five thousand, five hundred fourteen".