40816187 has 2 divisors, whose sum is σ = 40816188. Its totient is φ = 40816186.

The previous prime is 40816121. The next prime is 40816207. The reversal of 40816187 is 78161804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40816187 - 2¹² = 40812091 is a prime.

It is a super-2 number, since 2×40816187² = 3331922242437938, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40816387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20408093 + 20408094.

It is an arithmetic number, because the mean of its divisors is an integer number (20408094).

Almost surely, 2^40816187 is an apocalyptic number.

40816187 is a deficient number, since it is larger than the sum of its proper divisors (1).

40816187 is an equidigital number, since it uses as much as digits as its factorization.

40816187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 40816187 is about 6388.7547299924. The cubic root of 40816187 is about 344.3056454021.

The spelling of 40816187 in words is "forty million, eight hundred sixteen thousand, one hundred eighty-seven".