36540139 has 2 divisors, whose sum is σ = 36540140. Its totient is φ = 36540138.

The previous prime is 36540131. The next prime is 36540149. The reversal of 36540139 is 93104563.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36540139 - 2³ = 36540131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36540139.

It is not a weakly prime, because it can be changed into another prime (36540131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18270069 + 18270070.

It is an arithmetic number, because the mean of its divisors is an integer number (18270070).

Almost surely, 2^36540139 is an apocalyptic number.

36540139 is a deficient number, since it is larger than the sum of its proper divisors (1).

36540139 is an equidigital number, since it uses as much as digits as its factorization.

36540139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 36540139 is about 6044.8440012956. The cubic root of 36540139 is about 331.8359225780.

It can be divided in two parts, 365 and 40139, that added together give a palindrome (40504).

The spelling of 36540139 in words is "thirty-six million, five hundred forty thousand, one hundred thirty-nine".