1155478453 has 8 divisors (see below), whose sum is σ = 1169147840. Its totient is φ = 1141845120.

The previous prime is 1155478451. The next prime is 1155478459. The reversal of 1155478453 is 3548745511.

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

It is a cyclic number.

It is not a de Polignac number, because 1155478453 - 2¹ = 1155478451 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 (1155478451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58408 + ... + 75646.

It is an arithmetic number, because the mean of its divisors is an integer number (146143480).

Almost surely, 2^1155478453 is an apocalyptic number.

It is an amenable number.

1155478453 is a deficient number, since it is larger than the sum of its proper divisors (13669387).

1155478453 is an equidigital number, since it uses as much as digits as its factorization.

1155478453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18027.

The product of its digits is 336000, while the sum is 43.

The square root of 1155478453 is about 33992.3293258935. The cubic root of 1155478453 is about 1049.3506046481.

The spelling of 1155478453 in words is "one billion, one hundred fifty-five million, four hundred seventy-eight thousand, four hundred fifty-three".