36180857 has 4 divisors (see below), whose sum is σ = 37158756. Its totient is φ = 35202960.

The previous prime is 36180853. The next prime is 36180877. The reversal of 36180857 is 75808163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75808163 = 79 ⋅959597.

It can be written as a sum of positive squares in 2 ways, for example, as 24098281 + 12082576 = 4909^2 + 3476^2 .

It is a cyclic number.

It is not a de Polignac number, because 36180857 - 2² = 36180853 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 36180857.

It is not an unprimeable number, because it can be changed into a prime (36180853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488894 + ... + 488967.

It is an arithmetic number, because the mean of its divisors is an integer number (9289689).

Almost surely, 2^36180857 is an apocalyptic number.

36180857 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

36180857 is a deficient number, since it is larger than the sum of its proper divisors (977899).

36180857 is an equidigital number, since it uses as much as digits as its factorization.

36180857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977898.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 36180857 is about 6015.0525350989. The cubic root of 36180857 is about 330.7447428571.

It can be divided in two parts, 361 and 80857, that added together give a palindrome (81218).

The spelling of 36180857 in words is "thirty-six million, one hundred eighty thousand, eight hundred fifty-seven".