2113455 has 8 divisors (see below), whose sum is σ = 3381552. Its totient is φ = 1127168.

The previous prime is 2113451. The next prime is 2113459. The reversal of 2113455 is 5543112.

It is an interprime number because it is at equal distance from previous prime (2113451) and next prime (2113459).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2113455 - 2² = 2113451 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70434 + ... + 70463.

It is an arithmetic number, because the mean of its divisors is an integer number (422694).

2^2113455 is an apocalyptic number.

2113455 is a deficient number, since it is larger than the sum of its proper divisors (1268097).

2113455 is a wasteful number, since it uses less digits than its factorization.

2113455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140905.

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

The square root of 2113455 is about 1453.7726782410. The cubic root of 2113455 is about 128.3308295833.

Adding to 2113455 its reverse (5543112), we get a palindrome (7656567).

The spelling of 2113455 in words is "two million, one hundred thirteen thousand, four hundred fifty-five".