1164091538 has 8 divisors (see below), whose sum is σ = 1746861132. Its totient is φ = 581804496.

The previous prime is 1164091531. The next prime is 1164091543. The reversal of 1164091538 is 8351904611.

It can be written as a sum of positive squares in 2 ways, for example, as 972628969 + 191462569 = 31187^2 + 13837^2 .

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 (1164091531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114545 + ... + 124292.

Almost surely, 2^1164091538 is an apocalyptic number.

1164091538 is a deficient number, since it is larger than the sum of its proper divisors (582769594).

1164091538 is a wasteful number, since it uses less digits than its factorization.

1164091538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241276.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 1164091538 is about 34118.7857052387. The cubic root of 1164091538 is about 1051.9514843390.

The spelling of 1164091538 in words is "one billion, one hundred sixty-four million, ninety-one thousand, five hundred thirty-eight".