36215945 has 4 divisors (see below), whose sum is σ = 43459140. Its totient is φ = 28972752.

The previous prime is 36215941. The next prime is 36215953. The reversal of 36215945 is 54951263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54951263 = 199 ⋅276137.

It can be written as a sum of positive squares in 2 ways, for example, as 5257849 + 30958096 = 2293^2 + 5564^2 .

It is a cyclic number.

It is not a de Polignac number, because 36215945 - 2² = 36215941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36215941) 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, 3621590 + ... + 3621599.

It is an arithmetic number, because the mean of its divisors is an integer number (10864785).

Almost surely, 2^36215945 is an apocalyptic number.

It is an amenable number.

36215945 is a deficient number, since it is larger than the sum of its proper divisors (7243195).

36215945 is an equidigital number, since it uses as much as digits as its factorization.

36215945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7243194.

The product of its digits is 32400, while the sum is 35.

The square root of 36215945 is about 6017.9685110509. The cubic root of 36215945 is about 330.8516264689.

The spelling of 36215945 in words is "thirty-six million, two hundred fifteen thousand, nine hundred forty-five".