36158881 has 16 divisors (see below), whose sum is σ = 43968960. Its totient is φ = 29306880.

The previous prime is 36158869. The next prime is 36158887. The reversal of 36158881 is 18885163.

It is a cyclic number.

It is not a de Polignac number, because 36158881 - 2¹¹ = 36156833 is a prime.

It is a super-2 number, since 2×36158881² = 2614929350344322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36158887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1536 + ... + 8641.

It is an arithmetic number, because the mean of its divisors is an integer number (2748060).

Almost surely, 2^36158881 is an apocalyptic number.

It is an amenable number.

36158881 is a deficient number, since it is larger than the sum of its proper divisors (7810079).

36158881 is a wasteful number, since it uses less digits than its factorization.

36158881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10224.

The product of its digits is 46080, while the sum is 40.

The square root of 36158881 is about 6013.2255071634. The cubic root of 36158881 is about 330.6777652787.

The spelling of 36158881 in words is "thirty-six million, one hundred fifty-eight thousand, eight hundred eighty-one".