1255407 has 8 divisors (see below), whose sum is σ = 1728000. Its totient is φ = 809880.

The previous prime is 1255393. The next prime is 1255421. The reversal of 1255407 is 7045521.

It is an interprime number because it is at equal distance from previous prime (1255393) and next prime (1255421).

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

It is not a de Polignac number, because 1255407 - 2⁴ = 1255391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255427) 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, 6657 + ... + 6842.

It is an arithmetic number, because the mean of its divisors is an integer number (216000).

2^1255407 is an apocalyptic number.

1255407 is a deficient number, since it is larger than the sum of its proper divisors (472593).

1255407 is a wasteful number, since it uses less digits than its factorization.

1255407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13533.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 1255407 is about 1120.4494633851. The cubic root of 1255407 is about 107.8768314652.

The spelling of 1255407 in words is "one million, two hundred fifty-five thousand, four hundred seven".