1151157 has 24 divisors (see below), whose sum is σ = 1838592. Its totient is φ = 638400.

The previous prime is 1151147. The next prime is 1151159. The reversal of 1151157 is 7511511.

It is a happy number.

It is not a de Polignac number, because 1151157 - 2⁴ = 1151141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151159) 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, 5932 + ... + 6122.

It is an arithmetic number, because the mean of its divisors is an integer number (76608).

2^1151157 is an apocalyptic number.

It is an amenable number.

1151157 is a deficient number, since it is larger than the sum of its proper divisors (687435).

1151157 is a wasteful number, since it uses less digits than its factorization.

1151157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 242 counting only the distinct ones).

The product of its digits is 175, while the sum is 21.

The square root of 1151157 is about 1072.9198478917. The cubic root of 1151157 is about 104.8040791004.

Adding to 1151157 its reverse (7511511), we get a palindrome (8662668).

The spelling of 1151157 in words is "one million, one hundred fifty-one thousand, one hundred fifty-seven".