1155403453 has 8 divisors (see below), whose sum is σ = 1223681472. Its totient is φ = 1087160256.

The previous prime is 1155403439. The next prime is 1155403517. The reversal of 1155403453 is 3543045511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155403453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155403423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95026 + ... + 106492.

It is an arithmetic number, because the mean of its divisors is an integer number (152960184).

Almost surely, 2^1155403453 is an apocalyptic number.

It is an amenable number.

1155403453 is a deficient number, since it is larger than the sum of its proper divisors (68278019).

1155403453 is a wasteful number, since it uses less digits than its factorization.

1155403453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17411.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 1155403453 is about 33991.2261179264. The cubic root of 1155403453 is about 1049.3279003453.

Adding to 1155403453 its reverse (3543045511), we get a palindrome (4698448964).

The spelling of 1155403453 in words is "one billion, one hundred fifty-five million, four hundred three thousand, four hundred fifty-three".