1257106 has 8 divisors (see below), whose sum is σ = 1891404. Its totient is φ = 626640.

The previous prime is 1257103. The next prime is 1257119. The reversal of 1257106 is 6017521.

It can be written as a sum of positive squares in 2 ways, for example, as 1229881 + 27225 = 1109^2 + 165^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1257103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96 + ... + 1588.

2^1257106 is an apocalyptic number.

1257106 is a deficient number, since it is larger than the sum of its proper divisors (634298).

1257106 is a wasteful number, since it uses less digits than its factorization.

1257106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 1257106 is about 1121.2073849204. The cubic root of 1257106 is about 107.9254744198.

The spelling of 1257106 in words is "one million, two hundred fifty-seven thousand, one hundred six".