2061455 has 16 divisors (see below), whose sum is σ = 2774304. Its totient is φ = 1457280.

The previous prime is 2061431. The next prime is 2061491. The reversal of 2061455 is 5541602.

It is not a de Polignac number, because 2061455 - 2⁶ = 2061391 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 2061455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1529 + ... + 2541.

It is an arithmetic number, because the mean of its divisors is an integer number (173394).

2^2061455 is an apocalyptic number.

2061455 is a deficient number, since it is larger than the sum of its proper divisors (712849).

2061455 is a wasteful number, since it uses less digits than its factorization.

2061455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066.

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

The square root of 2061455 is about 1435.7767932377. The cubic root of 2061455 is about 127.2695825599.

It can be divided in two parts, 206 and 1455, that added together give a palindrome (1661).

The spelling of 2061455 in words is "two million, sixty-one thousand, four hundred fifty-five".