40100087 has 2 divisors, whose sum is σ = 40100088. Its totient is φ = 40100086.

The previous prime is 40100057. The next prime is 40100113. The reversal of 40100087 is 78000104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40100087 - 2⁸ = 40099831 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40100057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20050043 + 20050044.

It is an arithmetic number, because the mean of its divisors is an integer number (20050044).

Almost surely, 2^40100087 is an apocalyptic number.

40100087 is a deficient number, since it is larger than the sum of its proper divisors (1).

40100087 is an equidigital number, since it uses as much as digits as its factorization.

40100087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 40100087 is about 6332.4629489639. The cubic root of 40100087 is about 342.2801956930.

The spelling of 40100087 in words is "forty million, one hundred thousand, eighty-seven".