1157051205 has 48 divisors (see below), whose sum is σ = 2027578176. Its totient is φ = 610364160.

The previous prime is 1157051197. The next prime is 1157051219. The reversal of 1157051205 is 5021507511.

It is not a de Polignac number, because 1157051205 - 2³ = 1157051197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2212074 + ... + 2212596.

It is an arithmetic number, because the mean of its divisors is an integer number (42241212).

Almost surely, 2^1157051205 is an apocalyptic number.

1157051205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1157051205 is a deficient number, since it is larger than the sum of its proper divisors (870526971).

1157051205 is a wasteful number, since it uses less digits than its factorization.

1157051205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 27.

The square root of 1157051205 is about 34015.4553842808. The cubic root of 1157051205 is about 1049.8264883357.

Adding to 1157051205 its reverse (5021507511), we get a palindrome (6178558716).

The spelling of 1157051205 in words is "one billion, one hundred fifty-seven million, fifty-one thousand, two hundred five".