2155413 has 16 divisors (see below), whose sum is σ = 3278016. Its totient is φ = 1248000.

The previous prime is 2155409. The next prime is 2155423. The reversal of 2155413 is 3145512.

It is not a de Polignac number, because 2155413 - 2² = 2155409 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2155413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155423) 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, 963 + ... + 2288.

It is an arithmetic number, because the mean of its divisors is an integer number (204876).

2^2155413 is an apocalyptic number.

It is an amenable number.

2155413 is a deficient number, since it is larger than the sum of its proper divisors (1122603).

2155413 is a wasteful number, since it uses less digits than its factorization.

2155413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284.

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

The square root of 2155413 is about 1468.1324872095. The cubic root of 2155413 is about 129.1745129238.

Subtracting 2155413 from its reverse (3145512), we obtain a palindrome (990099).

The spelling of 2155413 in words is "two million, one hundred fifty-five thousand, four hundred thirteen".