1157171105 has 8 divisors (see below), whose sum is σ = 1395655272. Its totient is φ = 921036928.

The previous prime is 1157171087. The next prime is 1157171111. The reversal of 1157171105 is 5011717511.

It can be written as a sum of positive squares in 4 ways, for example, as 100661089 + 1056510016 = 10033^2 + 32504^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1157171105 - 2⁸ = 1157170849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586412 + ... + 588381.

It is an arithmetic number, because the mean of its divisors is an integer number (174456909).

Almost surely, 2^1157171105 is an apocalyptic number.

It is an amenable number.

1157171105 is a deficient number, since it is larger than the sum of its proper divisors (238484167).

1157171105 is a wasteful number, since it uses less digits than its factorization.

1157171105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174995.

The product of its (nonzero) digits is 1225, while the sum is 29.

The square root of 1157171105 is about 34017.2177727691. The cubic root of 1157171105 is about 1049.8627500119.

Adding to 1157171105 its reverse (5011717511), we get a palindrome (6168888616).

The spelling of 1157171105 in words is "one billion, one hundred fifty-seven million, one hundred seventy-one thousand, one hundred five".