36128257 has 8 divisors (see below), whose sum is σ = 40374432. Its totient is φ = 32042400.

The previous prime is 36128233. The next prime is 36128263. The reversal of 36128257 is 75282163.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36128257 - 2⁷ = 36128129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36128227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39603 + ... + 40504.

It is an arithmetic number, because the mean of its divisors is an integer number (5046804).

Almost surely, 2^36128257 is an apocalyptic number.

It is an amenable number.

36128257 is a deficient number, since it is larger than the sum of its proper divisors (4246175).

36128257 is a wasteful number, since it uses less digits than its factorization.

36128257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80159.

The product of its digits is 20160, while the sum is 34.

The square root of 36128257 is about 6010.6785806596. The cubic root of 36128257 is about 330.5843853970.

The spelling of 36128257 in words is "thirty-six million, one hundred twenty-eight thousand, two hundred fifty-seven".