36161243 has 4 divisors (see below), whose sum is σ = 36481368. Its totient is φ = 35841120.

The previous prime is 36161239. The next prime is 36161263. The reversal of 36161243 is 34216163.

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 36161243 - 2² = 36161239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36161233) 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, 159893 + ... + 160118.

It is an arithmetic number, because the mean of its divisors is an integer number (9120342).

Almost surely, 2^36161243 is an apocalyptic number.

36161243 is a deficient number, since it is larger than the sum of its proper divisors (320125).

36161243 is a wasteful number, since it uses less digits than its factorization.

36161243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320124.

The product of its digits is 2592, while the sum is 26.

The square root of 36161243 is about 6013.4219043736. The cubic root of 36161243 is about 330.6849653897.

The spelling of 36161243 in words is "thirty-six million, one hundred sixty-one thousand, two hundred forty-three".