1249158 has 16 divisors (see below), whose sum is σ = 2540016. Its totient is φ = 409440.

The previous prime is 1249151. The next prime is 1249159. The reversal of 1249158 is 8519421.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249151) 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, 1341 + ... + 2072.

It is an arithmetic number, because the mean of its divisors is an integer number (158751).

2^1249158 is an apocalyptic number.

1249158 is an abundant number, since it is smaller than the sum of its proper divisors (1290858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1249158 is a wasteful number, since it uses less digits than its factorization.

1249158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479.

The product of its digits is 2880, while the sum is 30.

The square root of 1249158 is about 1117.6573714694. The cubic root of 1249158 is about 107.6975419486.

The spelling of 1249158 in words is "one million, two hundred forty-nine thousand, one hundred fifty-eight".