1157165722 has 8 divisors (see below), whose sum is σ = 1742664672. Its totient is φ = 576277500.

The previous prime is 1157165717. The next prime is 1157165747. The reversal of 1157165722 is 2275617511.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1152054 + ... + 1153057.

It is an arithmetic number, because the mean of its divisors is an integer number (217833084).

Almost surely, 2^1157165722 is an apocalyptic number.

1157165722 is a deficient number, since it is larger than the sum of its proper divisors (585498950).

1157165722 is a wasteful number, since it uses less digits than its factorization.

1157165722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305364.

The product of its digits is 29400, while the sum is 37.

The square root of 1157165722 is about 34017.1386509800. The cubic root of 1157165722 is about 1049.8611220706.

The spelling of 1157165722 in words is "one billion, one hundred fifty-seven million, one hundred sixty-five thousand, seven hundred twenty-two".