1256602 has 4 divisors (see below), whose sum is σ = 1884906. Its totient is φ = 628300.

The previous prime is 1256597. The next prime is 1256611. The reversal of 1256602 is 2066521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1147041 + 109561 = 1071^2 + 331^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314149 + ... + 314152.

2^1256602 is an apocalyptic number.

1256602 is a deficient number, since it is larger than the sum of its proper divisors (628304).

1256602 is an equidigital number, since it uses as much as digits as its factorization.

1256602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628303.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1256602 is about 1120.9826046822. The cubic root of 1256602 is about 107.9110493010.

The spelling of 1256602 in words is "one million, two hundred fifty-six thousand, six hundred two".