1103749291 has 2 divisors, whose sum is σ = 1103749292. Its totient is φ = 1103749290.

The previous prime is 1103749289. The next prime is 1103749301. The reversal of 1103749291 is 1929473011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1103749291 - 2¹ = 1103749289 is a prime.

Together with 1103749289, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1103749291.

It is not a weakly prime, because it can be changed into another prime (1103749261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551874645 + 551874646.

It is an arithmetic number, because the mean of its divisors is an integer number (551874646).

Almost surely, 2^1103749291 is an apocalyptic number.

1103749291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103749291 is an equidigital number, since it uses as much as digits as its factorization.

1103749291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 1103749291 is about 33222.7225103543. The cubic root of 1103749291 is about 1033.4516092734.

The spelling of 1103749291 in words is "one billion, one hundred three million, seven hundred forty-nine thousand, two hundred ninety-one".