36181546 has 4 divisors (see below), whose sum is σ = 54272322. Its totient is φ = 18090772.

The previous prime is 36181543. The next prime is 36181577. The reversal of 36181546 is 64518163.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 35533521 + 648025 = 5961^2 + 805^2 .

It is not an unprimeable number, because it can be changed into a prime (36181543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9045385 + ... + 9045388.

Almost surely, 2^36181546 is an apocalyptic number.

36181546 is a deficient number, since it is larger than the sum of its proper divisors (18090776).

36181546 is a wasteful number, since it uses less digits than its factorization.

36181546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18090775.

The product of its digits is 17280, while the sum is 34.

The square root of 36181546 is about 6015.1098078090. The cubic root of 36181546 is about 330.7468423254.

The spelling of 36181546 in words is "thirty-six million, one hundred eighty-one thousand, five hundred forty-six".