2064155 has 4 divisors (see below), whose sum is σ = 2476992. Its totient is φ = 1651320.

The previous prime is 2064151. The next prime is 2064169. The reversal of 2064155 is 5514602.

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

It is not a de Polignac number, because 2064155 - 2² = 2064151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2064155.

It is not an unprimeable number, because it can be changed into a prime (2064151) 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, 206411 + ... + 206420.

It is an arithmetic number, because the mean of its divisors is an integer number (619248).

2^2064155 is an apocalyptic number.

2064155 is a deficient number, since it is larger than the sum of its proper divisors (412837).

2064155 is an equidigital number, since it uses as much as digits as its factorization.

2064155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412836.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2064155 is about 1436.7167431335. The cubic root of 2064155 is about 127.3251222894.

Adding to 2064155 its reverse (5514602), we get a palindrome (7578757).

The spelling of 2064155 in words is "two million, sixty-four thousand, one hundred fifty-five".