36143947 has 16 divisors (see below), whose sum is σ = 44985600. Its totient is φ = 28334880.

The previous prime is 36143929. The next prime is 36143953. The reversal of 36143947 is 74934163.

It is not a de Polignac number, because 36143947 - 2¹⁹ = 35619659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36143957) 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, 829 + ... + 8542.

It is an arithmetic number, because the mean of its divisors is an integer number (2811600).

Almost surely, 2^36143947 is an apocalyptic number.

36143947 is a deficient number, since it is larger than the sum of its proper divisors (8841653).

36143947 is a wasteful number, since it uses less digits than its factorization.

36143947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9426.

The product of its digits is 54432, while the sum is 37.

The square root of 36143947 is about 6011.9836160788. The cubic root of 36143947 is about 330.6322345393.

The spelling of 36143947 in words is "thirty-six million, one hundred forty-three thousand, nine hundred forty-seven".