36091129 has 4 divisors (see below), whose sum is σ = 36105076. Its totient is φ = 36077184.

The previous prime is 36091093. The next prime is 36091141. The reversal of 36091129 is 92119063.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3429904 + 32661225 = 1852^2 + 5715^2 .

It is a cyclic number.

It is not a de Polignac number, because 36091129 - 2²⁵ = 2536697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36091129.

It is not an unprimeable number, because it can be changed into a prime (36091189) 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, 1824 + ... + 8689.

It is an arithmetic number, because the mean of its divisors is an integer number (9026269).

Almost surely, 2^36091129 is an apocalyptic number.

It is an amenable number.

36091129 is a deficient number, since it is larger than the sum of its proper divisors (13947).

36091129 is a wasteful number, since it uses less digits than its factorization.

36091129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13946.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 36091129 is about 6007.5892835646. The cubic root of 36091129 is about 330.4711024710.

The spelling of 36091129 in words is "thirty-six million, ninety-one thousand, one hundred twenty-nine".