1157271706 has 8 divisors (see below), whose sum is σ = 1736072640. Its totient is φ = 578580828.

The previous prime is 1157271691. The next prime is 1157271707. The reversal of 1157271706 is 6071727511.

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

It is not an unprimeable number, because it can be changed into a prime (1157271707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7885 + ... + 48751.

It is an arithmetic number, because the mean of its divisors is an integer number (217009080).

Almost surely, 2^1157271706 is an apocalyptic number.

1157271706 is a deficient number, since it is larger than the sum of its proper divisors (578800934).

1157271706 is a wasteful number, since it uses less digits than its factorization.

1157271706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55028.

The product of its (nonzero) digits is 20580, while the sum is 37.

The square root of 1157271706 is about 34018.6964182933. The cubic root of 1157271706 is about 1049.8931731076.

The spelling of 1157271706 in words is "one billion, one hundred fifty-seven million, two hundred seventy-one thousand, seven hundred six".