1097938043 has 4 divisors (see below), whose sum is σ = 1098459768. Its totient is φ = 1097416320.

The previous prime is 1097938033. The next prime is 1097938073. The reversal of 1097938043 is 3408397901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1097938043 - 2¹⁸ = 1097675899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1097937985 and 1097938003.

It is not an unprimeable number, because it can be changed into a prime (1097938003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257693 + ... + 261918.

It is an arithmetic number, because the mean of its divisors is an integer number (274614942).

Almost surely, 2^1097938043 is an apocalyptic number.

1097938043 is a deficient number, since it is larger than the sum of its proper divisors (521725).

1097938043 is an equidigital number, since it uses as much as digits as its factorization.

1097938043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521724.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 1097938043 is about 33135.1481511702. The cubic root of 1097938043 is about 1031.6347067989.

The spelling of 1097938043 in words is "one billion, ninety-seven million, nine hundred thirty-eight thousand, forty-three".