36312481 has 2 divisors, whose sum is σ = 36312482. Its totient is φ = 36312480.

The previous prime is 36312457. The next prime is 36312517. The reversal of 36312481 is 18421363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36000000 + 312481 = 6000^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 36312481 - 2⁵ = 36312449 is a prime.

It is a super-2 number, since 2×36312481² = 2637192552750722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36312431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18156240 + 18156241.

It is an arithmetic number, because the mean of its divisors is an integer number (18156241).

Almost surely, 2^36312481 is an apocalyptic number.

It is an amenable number.

36312481 is a deficient number, since it is larger than the sum of its proper divisors (1).

36312481 is an equidigital number, since it uses as much as digits as its factorization.

36312481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 28.

The square root of 36312481 is about 6025.9838200911. The cubic root of 36312481 is about 331.1453346313.

It can be divided in two parts, 36 and 312481, that multiplied together give a square (11249316 = 3354²).

The spelling of 36312481 in words is "thirty-six million, three hundred twelve thousand, four hundred eighty-one".