22140787 has 2 divisors, whose sum is σ = 22140788. Its totient is φ = 22140786.

The previous prime is 22140773. The next prime is 22140791. The reversal of 22140787 is 78704122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22140787 - 2¹⁹ = 21616499 is a prime.

It is not a weakly prime, because it can be changed into another prime (22143787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11070393 + 11070394.

It is an arithmetic number, because the mean of its divisors is an integer number (11070394).

Almost surely, 2^22140787 is an apocalyptic number.

22140787 is a deficient number, since it is larger than the sum of its proper divisors (1).

22140787 is an equidigital number, since it uses as much as digits as its factorization.

22140787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 22140787 is about 4705.3997704765. The cubic root of 22140787 is about 280.8003757743.

The spelling of 22140787 in words is "twenty-two million, one hundred forty thousand, seven hundred eighty-seven".