1105947453 has 16 divisors (see below), whose sum is σ = 1588623680. Its totient is φ = 680327424.

The previous prime is 1105947443. The next prime is 1105947499. The reversal of 1105947453 is 3547495011.

It is a de Polignac number, because none of the positive numbers 2^k-1105947453 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105947443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201378 + ... + 206796.

It is an arithmetic number, because the mean of its divisors is an integer number (99288980).

Almost surely, 2^1105947453 is an apocalyptic number.

1105947453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1105947453 is a deficient number, since it is larger than the sum of its proper divisors (482676227).

1105947453 is a wasteful number, since it uses less digits than its factorization.

1105947453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10668.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 1105947453 is about 33255.7882630979. The cubic root of 1105947453 is about 1034.1372081028.

The spelling of 1105947453 in words is "one billion, one hundred five million, nine hundred forty-seven thousand, four hundred fifty-three".