1255105 has 8 divisors (see below), whose sum is σ = 1513152. Its totient is φ = 999408.

The previous prime is 1255103. The next prime is 1255109. The reversal of 1255105 is 5015521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255105 - 2¹ = 1255103 is a prime.

It is a super-2 number, since 2×1255105² = 3150577122050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972 + ... + 1858.

It is an arithmetic number, because the mean of its divisors is an integer number (189144).

2^1255105 is an apocalyptic number.

It is an amenable number.

1255105 is a deficient number, since it is larger than the sum of its proper divisors (258047).

1255105 is an equidigital number, since it uses as much as digits as its factorization.

1255105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 1255105 is about 1120.3146879337. The cubic root of 1255105 is about 107.8681805082.

The spelling of 1255105 in words is "one million, two hundred fifty-five thousand, one hundred five".