36157999 has 4 divisors (see below), whose sum is σ = 36422064. Its totient is φ = 35893936.

The previous prime is 36157951. The next prime is 36158009. The reversal of 36157999 is 99975163.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36157999 - 2¹⁵ = 36125231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36157949) 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, 131827 + ... + 132100.

It is an arithmetic number, because the mean of its divisors is an integer number (9105516).

Almost surely, 2^36157999 is an apocalyptic number.

36157999 is a deficient number, since it is larger than the sum of its proper divisors (264065).

36157999 is a wasteful number, since it uses less digits than its factorization.

36157999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264064.

The product of its digits is 459270, while the sum is 49.

The square root of 36157999 is about 6013.1521683723. The cubic root of 36157999 is about 330.6750765878.

The spelling of 36157999 in words is "thirty-six million, one hundred fifty-seven thousand, nine hundred ninety-nine".