1153312543 has 8 divisors (see below), whose sum is σ = 1173107456. Its totient is φ = 1133546400.

The previous prime is 1153312507. The next prime is 1153312579. The reversal of 1153312543 is 3452133511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1153312507) and next prime (1153312579).

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 1153312543 - 2²¹ = 1151215391 is a prime.

It is a super-2 number, since 2×1153312543² = 2660259643682253698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153312583) 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, 83305 + ... + 96157.

It is an arithmetic number, because the mean of its divisors is an integer number (146638432).

Almost surely, 2^1153312543 is an apocalyptic number.

1153312543 is a deficient number, since it is larger than the sum of its proper divisors (19794913).

1153312543 is a wasteful number, since it uses less digits than its factorization.

1153312543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14385.

The product of its digits is 5400, while the sum is 28.

The square root of 1153312543 is about 33960.4555770384. The cubic root of 1153312543 is about 1048.6945357153.

The spelling of 1153312543 in words is "one billion, one hundred fifty-three million, three hundred twelve thousand, five hundred forty-three".