1157115 has 8 divisors (see below), whose sum is σ = 1851408. Its totient is φ = 617120.

The previous prime is 1157111. The next prime is 1157131. The reversal of 1157115 is 5117511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1157115 - 2² = 1157111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1157091 and 1157100.

It is not an unprimeable number, because it can be changed into a prime (1157111) 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, 38556 + ... + 38585.

It is an arithmetic number, because the mean of its divisors is an integer number (231426).

2^1157115 is an apocalyptic number.

1157115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1157115 is a deficient number, since it is larger than the sum of its proper divisors (694293).

1157115 is an equidigital number, since it uses as much as digits as its factorization.

1157115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77149.

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

The square root of 1157115 is about 1075.6928000131. The cubic root of 1157115 is about 104.9845782339.

The spelling of 1157115 in words is "one million, one hundred fifty-seven thousand, one hundred fifteen".