36311161 has 4 divisors (see below), whose sum is σ = 37563300. Its totient is φ = 35059024.

The previous prime is 36311141. The next prime is 36311173. The reversal of 36311161 is 16111363.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16111363 = 103 ⋅156421.

It can be written as a sum of positive squares in 2 ways, for example, as 24443136 + 11868025 = 4944^2 + 3445^2 .

It is a cyclic number.

It is not a de Polignac number, because 36311161 - 2¹³ = 36302969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36311111) 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, 626026 + ... + 626083.

It is an arithmetic number, because the mean of its divisors is an integer number (9390825).

Almost surely, 2^36311161 is an apocalyptic number.

It is an amenable number.

36311161 is a deficient number, since it is larger than the sum of its proper divisors (1252139).

36311161 is a wasteful number, since it uses less digits than its factorization.

36311161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252138.

The product of its digits is 324, while the sum is 22.

The square root of 36311161 is about 6025.8742934117. The cubic root of 36311161 is about 331.1413220795.

The spelling of 36311161 in words is "thirty-six million, three hundred eleven thousand, one hundred sixty-one".