1251159 has 16 divisors (see below), whose sum is σ = 2053632. Its totient is φ = 659808.

The previous prime is 1251157. The next prime is 1251161. The reversal of 1251159 is 9511521.

It is an interprime number because it is at equal distance from previous prime (1251157) and next prime (1251161).

It is not a de Polignac number, because 1251159 - 2¹ = 1251157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2019 + ... + 2564.

It is an arithmetic number, because the mean of its divisors is an integer number (128352).

2^1251159 is an apocalyptic number.

1251159 is a deficient number, since it is larger than the sum of its proper divisors (802473).

1251159 is a wasteful number, since it uses less digits than its factorization.

1251159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606.

The product of its digits is 450, while the sum is 24.

The square root of 1251159 is about 1118.5521892160. The cubic root of 1251159 is about 107.7550174145.

The spelling of 1251159 in words is "one million, two hundred fifty-one thousand, one hundred fifty-nine".