1255670 has 24 divisors (see below), whose sum is σ = 2450736. Its totient is φ = 463008.

The previous prime is 1255663. The next prime is 1255679. The reversal of 1255670 is 765521.

1255670 = 241² + 242² + ... + 260².

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255679) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1319 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (102114).

2^1255670 is an apocalyptic number.

1255670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1255670 is a deficient number, since it is larger than the sum of its proper divisors (1195066).

1255670 is a wasteful number, since it uses less digits than its factorization.

1255670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 1255670 is about 1120.5668208545. The cubic root of 1255670 is about 107.8843641155.

The spelling of 1255670 in words is "one million, two hundred fifty-five thousand, six hundred seventy".