36318431 has 2 divisors, whose sum is σ = 36318432. Its totient is φ = 36318430.

The previous prime is 36318427. The next prime is 36318463. The reversal of 36318431 is 13481363.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36318431 - 2² = 36318427 is a prime.

It is a super-2 number, since 2×36318431² = 2638056860603522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36318394 and 36318403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36318131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18159215 + 18159216.

It is an arithmetic number, because the mean of its divisors is an integer number (18159216).

Almost surely, 2^36318431 is an apocalyptic number.

36318431 is a deficient number, since it is larger than the sum of its proper divisors (1).

36318431 is an equidigital number, since it uses as much as digits as its factorization.

36318431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 36318431 is about 6026.4774951874. The cubic root of 36318431 is about 331.1634203058.

Adding to 36318431 its reverse (13481363), we get a palindrome (49799794).

The spelling of 36318431 in words is "thirty-six million, three hundred eighteen thousand, four hundred thirty-one".