36518731 has 2 divisors, whose sum is σ = 36518732. Its totient is φ = 36518730.

The previous prime is 36518711. The next prime is 36518759. The reversal of 36518731 is 13781563.

It is a weak prime.

It is an emirp because it is prime and its reverse (13781563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36518731 - 2¹⁵ = 36485963 is a prime.

It is a super-2 number, since 2×36518731² = 2667235427700722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36518701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18259365 + 18259366.

It is an arithmetic number, because the mean of its divisors is an integer number (18259366).

Almost surely, 2^36518731 is an apocalyptic number.

36518731 is a deficient number, since it is larger than the sum of its proper divisors (1).

36518731 is an equidigital number, since it uses as much as digits as its factorization.

36518731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 36518731 is about 6043.0729765575. The cubic root of 36518731 is about 331.7711049881.

It can be divided in two parts, 36518 and 731, that added together give a square (37249 = 193²).

The spelling of 36518731 in words is "thirty-six million, five hundred eighteen thousand, seven hundred thirty-one".