1099540373 has 2 divisors, whose sum is σ = 1099540374. Its totient is φ = 1099540372.

The previous prime is 1099540363. The next prime is 1099540411. The reversal of 1099540373 is 3730459901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 825240529 + 274299844 = 28727^2 + 16562^2 .

It is a cyclic number.

It is not a de Polignac number, because 1099540373 - 2⁴ = 1099540357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1099540373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099540303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549770186 + 549770187.

It is an arithmetic number, because the mean of its divisors is an integer number (549770187).

Almost surely, 2^1099540373 is an apocalyptic number.

It is an amenable number.

1099540373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099540373 is an equidigital number, since it uses as much as digits as its factorization.

1099540373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 1099540373 is about 33159.3180418416. The cubic root of 1099540373 is about 1032.1363185134.

The spelling of 1099540373 in words is "one billion, ninety-nine million, five hundred forty thousand, three hundred seventy-three".