36131143 has 4 divisors (see below), whose sum is σ = 36187128. Its totient is φ = 36075160.

The previous prime is 36131113. The next prime is 36131149. The reversal of 36131143 is 34113163.

It is a happy number.

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 36131143 - 2⁵ = 36131111 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 (36131149) 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, 27013 + ... + 28318.

It is an arithmetic number, because the mean of its divisors is an integer number (9046782).

Almost surely, 2^36131143 is an apocalyptic number.

36131143 is a deficient number, since it is larger than the sum of its proper divisors (55985).

36131143 is an equidigital number, since it uses as much as digits as its factorization.

36131143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55984.

The product of its digits is 648, while the sum is 22.

The square root of 36131143 is about 6010.9186485927. The cubic root of 36131143 is about 330.5931877511.

The spelling of 36131143 in words is "thirty-six million, one hundred thirty-one thousand, one hundred forty-three".