1262159 has 4 divisors (see below), whose sum is σ = 1267680. Its totient is φ = 1256640.

The previous prime is 1262147. The next prime is 1262203. The reversal of 1262159 is 9512621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9512621 = 107 ⋅88903.

It is a cyclic number.

It is not a de Polignac number, because 1262159 - 2⁴ = 1262143 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1262119) 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, 2402 + ... + 2879.

It is an arithmetic number, because the mean of its divisors is an integer number (316920).

2^1262159 is an apocalyptic number.

1262159 is a deficient number, since it is larger than the sum of its proper divisors (5521).

1262159 is an equidigital number, since it uses as much as digits as its factorization.

1262159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520.

The product of its digits is 1080, while the sum is 26.

The square root of 1262159 is about 1123.4584994560. The cubic root of 1262159 is about 108.0698850386.

The spelling of 1262159 in words is "one million, two hundred sixty-two thousand, one hundred fifty-nine".