36021457 has 2 divisors, whose sum is σ = 36021458. Its totient is φ = 36021456.

The previous prime is 36021449. The next prime is 36021481. The reversal of 36021457 is 75412063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34857216 + 1164241 = 5904^2 + 1079^2 .

It is a cyclic number.

It is not a de Polignac number, because 36021457 - 2³ = 36021449 is a prime.

It is not a weakly prime, because it can be changed into another prime (36021407) 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 as a sum of consecutive naturals, namely, 18010728 + 18010729.

It is an arithmetic number, because the mean of its divisors is an integer number (18010729).

Almost surely, 2^36021457 is an apocalyptic number.

It is an amenable number.

36021457 is a deficient number, since it is larger than the sum of its proper divisors (1).

36021457 is an equidigital number, since it uses as much as digits as its factorization.

36021457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 36021457 is about 6001.7878169759. The cubic root of 36021457 is about 330.2583132057.

The spelling of 36021457 in words is "thirty-six million, twenty-one thousand, four hundred fifty-seven".