1255947 has 16 divisors (see below), whose sum is σ = 2088192. Its totient is φ = 652320.

The previous prime is 1255939. The next prime is 1255949. The reversal of 1255947 is 7495521.

It is not a de Polignac number, because 1255947 - 2³ = 1255939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

1255947 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1255949) 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, 2488 + ... + 2949.

It is an arithmetic number, because the mean of its divisors is an integer number (130512).

2^1255947 is an apocalyptic number.

1255947 is a deficient number, since it is larger than the sum of its proper divisors (832245).

1255947 is a wasteful number, since it uses less digits than its factorization.

1255947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5458.

The product of its digits is 12600, while the sum is 33.

The square root of 1255947 is about 1120.6904122013. The cubic root of 1255947 is about 107.8922966062.

The spelling of 1255947 in words is "one million, two hundred fifty-five thousand, nine hundred forty-seven".