36291081 has 4 divisors (see below), whose sum is σ = 48388112. Its totient is φ = 24194052.

The previous prime is 36291053. The next prime is 36291089. The reversal of 36291081 is 18019263.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18019263 = 3 ⋅6006421.

It is not a de Polignac number, because 36291081 - 2⁷ = 36290953 is a prime.

It is a super-2 number, since 2×36291081² = 2634085120297122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36291089) 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, 6048511 + ... + 6048516.

It is an arithmetic number, because the mean of its divisors is an integer number (12097028).

Almost surely, 2^36291081 is an apocalyptic number.

It is an amenable number.

36291081 is a deficient number, since it is larger than the sum of its proper divisors (12097031).

36291081 is a wasteful number, since it uses less digits than its factorization.

36291081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12097030.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 36291081 is about 6024.2079147387. The cubic root of 36291081 is about 331.0802706596.

The spelling of 36291081 in words is "thirty-six million, two hundred ninety-one thousand, eighty-one".