1255345 has 32 divisors (see below), whose sum is σ = 1935360. Its totient is φ = 760320.

The previous prime is 1255337. The next prime is 1255357. The reversal of 1255345 is 5435521.

It is not a de Polignac number, because 1255345 - 2³ = 1255337 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14061 + ... + 14149.

It is an arithmetic number, because the mean of its divisors is an integer number (60480).

2^1255345 is an apocalyptic number.

It is an amenable number.

1255345 is a deficient number, since it is larger than the sum of its proper divisors (680015).

1255345 is a wasteful number, since it uses less digits than its factorization.

1255345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145.

The product of its digits is 3000, while the sum is 25.

The square root of 1255345 is about 1120.4217955752. The cubic root of 1255345 is about 107.8750555541.

Subtracting from 1255345 its sum of digits (25), we obtain a triangular number (1255320 = T₁₅₈₄).

It can be divided in two parts, 1255 and 345, that added together give a square (1600 = 40²).

The spelling of 1255345 in words is "one million, two hundred fifty-five thousand, three hundred forty-five".