39118091 has 2 divisors, whose sum is σ = 39118092. Its totient is φ = 39118090.

The previous prime is 39118073. The next prime is 39118097. The reversal of 39118091 is 19081193.

It is a strong prime.

It is an emirp because it is prime and its reverse (19081193) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39118091 - 2¹⁴ = 39101707 is a prime.

It is not a weakly prime, because it can be changed into another prime (39118097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19559045 + 19559046.

It is an arithmetic number, because the mean of its divisors is an integer number (19559046).

Almost surely, 2^39118091 is an apocalyptic number.

39118091 is a deficient number, since it is larger than the sum of its proper divisors (1).

39118091 is an equidigital number, since it uses as much as digits as its factorization.

39118091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 39118091 is about 6254.4456988609. The cubic root of 39118091 is about 339.4630827828.

The spelling of 39118091 in words is "thirty-nine million, one hundred eighteen thousand, ninety-one".