36531457 has 2 divisors, whose sum is σ = 36531458. Its totient is φ = 36531456.

The previous prime is 36531449. The next prime is 36531493. The reversal of 36531457 is 75413563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36529936 + 1521 = 6044^2 + 39^2 .

It is a cyclic number.

It is not a de Polignac number, because 36531457 - 2³ = 36531449 is a prime.

It is not a weakly prime, because it can be changed into another prime (36531437) 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, 18265728 + 18265729.

It is an arithmetic number, because the mean of its divisors is an integer number (18265729).

Almost surely, 2^36531457 is an apocalyptic number.

It is an amenable number.

36531457 is a deficient number, since it is larger than the sum of its proper divisors (1).

36531457 is an equidigital number, since it uses as much as digits as its factorization.

36531457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 34.

The square root of 36531457 is about 6044.1258259570. The cubic root of 36531457 is about 331.8096389005.

The spelling of 36531457 in words is "thirty-six million, five hundred thirty-one thousand, four hundred fifty-seven".