40115093 has 2 divisors, whose sum is σ = 40115094. Its totient is φ = 40115092.

The previous prime is 40115083. The next prime is 40115143. The reversal of 40115093 is 39051104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30393169 + 9721924 = 5513^2 + 3118^2 .

It is a cyclic number.

It is not a de Polignac number, because 40115093 - 2⁴ = 40115077 is a prime.

It is a Chen prime.

It is equal to p_2440229 and since 40115093 and 2440229 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40115063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20057546 + 20057547.

It is an arithmetic number, because the mean of its divisors is an integer number (20057547).

Almost surely, 2^40115093 is an apocalyptic number.

It is an amenable number.

40115093 is a deficient number, since it is larger than the sum of its proper divisors (1).

40115093 is an equidigital number, since it uses as much as digits as its factorization.

40115093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 40115093 is about 6333.6476851811. The cubic root of 40115093 is about 342.3228856758.

Adding to 40115093 its reverse (39051104), we get a palindrome (79166197).

The spelling of 40115093 in words is "forty million, one hundred fifteen thousand, ninety-three".