1099540207 has 2 divisors, whose sum is σ = 1099540208. Its totient is φ = 1099540206.

The previous prime is 1099540199. The next prime is 1099540243. The reversal of 1099540207 is 7020459901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1099540207 - 2³ = 1099540199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099541207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549770103 + 549770104.

It is an arithmetic number, because the mean of its divisors is an integer number (549770104).

Almost surely, 2^1099540207 is an apocalyptic number.

1099540207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099540207 is an equidigital number, since it uses as much as digits as its factorization.

1099540207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1099540207 is about 33159.3155387743. The cubic root of 1099540207 is about 1032.1362665721.

The spelling of 1099540207 in words is "one billion, ninety-nine million, five hundred forty thousand, two hundred seven".