36315261 has 6 divisors (see below), whose sum is σ = 52455390. Its totient is φ = 24210168.

The previous prime is 36315197. The next prime is 36315283. The reversal of 36315261 is 16251363.

36315261 is a `hidden beast` number, since 3 + 631 + 5 + 26 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 34047225 + 2268036 = 5835^2 + 1506^2 .

It is not a de Polignac number, because 36315261 - 2⁶ = 36315197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36315761) 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 5 ways as a sum of consecutive naturals, for example, 2017506 + ... + 2017523.

It is an arithmetic number, because the mean of its divisors is an integer number (8742565).

Almost surely, 2^36315261 is an apocalyptic number.

It is an amenable number.

36315261 is a deficient number, since it is larger than the sum of its proper divisors (16140129).

36315261 is a wasteful number, since it uses less digits than its factorization.

36315261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035035 (or 4035032 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 36315261 is about 6026.2144834050. The cubic root of 36315261 is about 331.1537849907.

The spelling of 36315261 in words is "thirty-six million, three hundred fifteen thousand, two hundred sixty-one".