2154613 has 4 divisors (see below), whose sum is σ = 2228940. Its totient is φ = 2080288.

The previous prime is 2154611. The next prime is 2154629. The reversal of 2154613 is 3164512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1580049 + 574564 = 1257^2 + 758^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154613 - 2¹ = 2154611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37120 + ... + 37177.

It is an arithmetic number, because the mean of its divisors is an integer number (557235).

2^2154613 is an apocalyptic number.

It is an amenable number.

2154613 is a deficient number, since it is larger than the sum of its proper divisors (74327).

2154613 is an equidigital number, since it uses as much as digits as its factorization.

2154613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74326.

The product of its digits is 720, while the sum is 22.

The square root of 2154613 is about 1467.8600069489. The cubic root of 2154613 is about 129.1585295371.

The spelling of 2154613 in words is "two million, one hundred fifty-four thousand, six hundred thirteen".