1158157 has 24 divisors (see below), whose sum is σ = 1581120. Its totient is φ = 823680.

The previous prime is 1158139. The next prime is 1158161. The reversal of 1158157 is 7518511.

It is not a de Polignac number, because 1158157 - 2¹¹ = 1156109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12969 + ... + 13057.

It is an arithmetic number, because the mean of its divisors is an integer number (65880).

2^1158157 is an apocalyptic number.

It is an amenable number.

1158157 is a deficient number, since it is larger than the sum of its proper divisors (422963).

1158157 is a wasteful number, since it uses less digits than its factorization.

1158157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 120 counting only the distinct ones).

The product of its digits is 1400, while the sum is 28.

The square root of 1158157 is about 1076.1770300466. The cubic root of 1158157 is about 105.0160821928.

The spelling of 1158157 in words is "one million, one hundred fifty-eight thousand, one hundred fifty-seven".