36021481 has 2 divisors, whose sum is σ = 36021482. Its totient is φ = 36021480.

The previous prime is 36021457. The next prime is 36021497. The reversal of 36021481 is 18412063.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35283600 + 737881 = 5940^2 + 859^2 .

It is a cyclic number.

It is not a de Polignac number, because 36021481 - 2⁵ = 36021449 is a prime.

It is a super-2 number, since 2×36021481² = 2595094186866722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36021431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18010740 + 18010741.

It is an arithmetic number, because the mean of its divisors is an integer number (18010741).

Almost surely, 2^36021481 is an apocalyptic number.

It is an amenable number.

36021481 is a deficient number, since it is larger than the sum of its proper divisors (1).

36021481 is an equidigital number, since it uses as much as digits as its factorization.

36021481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 36021481 is about 6001.7898163798. The cubic root of 36021481 is about 330.2583865527.

The spelling of 36021481 in words is "thirty-six million, twenty-one thousand, four hundred eighty-one".