1018408537 has 2 divisors, whose sum is σ = 1018408538. Its totient is φ = 1018408536.

The previous prime is 1018408519. The next prime is 1018408637. The reversal of 1018408537 is 7358048101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 542470681 + 475937856 = 23291^2 + 21816^2 .

It is an emirp because it is prime and its reverse (7358048101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1018408537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1018408496 and 1018408505.

It is not a weakly prime, because it can be changed into another prime (1018408637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509204268 + 509204269.

It is an arithmetic number, because the mean of its divisors is an integer number (509204269).

Almost surely, 2^1018408537 is an apocalyptic number.

It is an amenable number.

1018408537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1018408537 is an equidigital number, since it uses as much as digits as its factorization.

1018408537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1018408537 is about 31912.5137994486. The cubic root of 1018408537 is about 1006.0989067172.

The spelling of 1018408537 in words is "one billion, eighteen million, four hundred eight thousand, five hundred thirty-seven".