1153144455 has 8 divisors (see below), whose sum is σ = 1845031152. Its totient is φ = 615010368.

The previous prime is 1153144453. The next prime is 1153144471. The reversal of 1153144455 is 5544413511.

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

It is not a de Polignac number, because 1153144455 - 2¹ = 1153144453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153144453) 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, 38438134 + ... + 38438163.

It is an arithmetic number, because the mean of its divisors is an integer number (230628894).

Almost surely, 2^1153144455 is an apocalyptic number.

1153144455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1153144455 is a deficient number, since it is larger than the sum of its proper divisors (691886697).

1153144455 is an equidigital number, since it uses as much as digits as its factorization.

1153144455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76876305.

The product of its digits is 24000, while the sum is 33.

The square root of 1153144455 is about 33957.9807261857. The cubic root of 1153144455 is about 1048.6435863774.

Adding to 1153144455 its reverse (5544413511), we get a palindrome (6697557966).

The spelling of 1153144455 in words is "one billion, one hundred fifty-three million, one hundred forty-four thousand, four hundred fifty-five".