36160991 has 4 divisors (see below), whose sum is σ = 37733232. Its totient is φ = 34588752.

The previous prime is 36160919. The next prime is 36161003. The reversal of 36160991 is 19906163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19906163 = 1669 ⋅11927.

It is a cyclic number.

It is not a de Polignac number, because 36160991 - 2¹⁴ = 36144607 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 (36360991) 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, 786086 + ... + 786131.

It is an arithmetic number, because the mean of its divisors is an integer number (9433308).

Almost surely, 2^36160991 is an apocalyptic number.

36160991 is a deficient number, since it is larger than the sum of its proper divisors (1572241).

36160991 is a wasteful number, since it uses less digits than its factorization.

36160991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572240.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 36160991 is about 6013.4009512089. The cubic root of 36160991 is about 330.6841972302.

The spelling of 36160991 in words is "thirty-six million, one hundred sixty thousand, nine hundred ninety-one".