1255045 has 16 divisors (see below), whose sum is σ = 1730880. Its totient is φ = 864000.

The previous prime is 1255039. The next prime is 1255049. The reversal of 1255045 is 5405521.

1255045 = T₄₉₆ + T₄₉₇ + ... + T₅₀₅.

It is not a de Polignac number, because 1255045 - 2⁵ = 1255013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255049) 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, 445 + ... + 1645.

It is an arithmetic number, because the mean of its divisors is an integer number (108180).

2^1255045 is an apocalyptic number.

It is an amenable number.

1255045 is a deficient number, since it is larger than the sum of its proper divisors (475835).

1255045 is a wasteful number, since it uses less digits than its factorization.

1255045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 1255045 is about 1120.2879094233. The cubic root of 1255045 is about 107.8664616098.

The spelling of 1255045 in words is "one million, two hundred fifty-five thousand, forty-five".