36135257 has 4 divisors (see below), whose sum is σ = 36399156. Its totient is φ = 35871360.

The previous prime is 36135233. The next prime is 36135259. The reversal of 36135257 is 75253163.

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 20894041 + 15241216 = 4571^2 + 3904^2 .

It is a cyclic number.

It is not a de Polignac number, because 36135257 - 2⁶ = 36135193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36135259) 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, 131744 + ... + 132017.

It is an arithmetic number, because the mean of its divisors is an integer number (9099789).

Almost surely, 2^36135257 is an apocalyptic number.

It is an amenable number.

36135257 is a deficient number, since it is larger than the sum of its proper divisors (263899).

36135257 is a wasteful number, since it uses less digits than its factorization.

36135257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263898.

The product of its digits is 18900, while the sum is 32.

The square root of 36135257 is about 6011.2608494392. The cubic root of 36135257 is about 330.6057347179.

The spelling of 36135257 in words is "thirty-six million, one hundred thirty-five thousand, two hundred fifty-seven".