1157055 has 8 divisors (see below), whose sum is σ = 1851312. Its totient is φ = 617088.

The previous prime is 1157053. The next prime is 1157059. The reversal of 1157055 is 5507511.

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

It is not a de Polignac number, because 1157055 - 2¹ = 1157053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157053) 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, 38554 + ... + 38583.

It is an arithmetic number, because the mean of its divisors is an integer number (231414).

2^1157055 is an apocalyptic number.

1157055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1157055 is a deficient number, since it is larger than the sum of its proper divisors (694257).

1157055 is an equidigital number, since it uses as much as digits as its factorization.

1157055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77145.

The product of its (nonzero) digits is 875, while the sum is 24.

The square root of 1157055 is about 1075.6649106483. The cubic root of 1157055 is about 104.9827636106.

The spelling of 1157055 in words is "one million, one hundred fifty-seven thousand, fifty-five".