1153143421 has 8 divisors (see below), whose sum is σ = 1214895200. Its totient is φ = 1091497680.

The previous prime is 1153143379. The next prime is 1153143457. The reversal of 1153143421 is 1243413511.

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 1153143421 - 2⁷ = 1153143293 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 (1153143461) 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, 3666 + ... + 48163.

It is an arithmetic number, because the mean of its divisors is an integer number (151861900).

Almost surely, 2^1153143421 is an apocalyptic number.

It is an amenable number.

1153143421 is a deficient number, since it is larger than the sum of its proper divisors (61751779).

1153143421 is a wasteful number, since it uses less digits than its factorization.

1153143421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53019.

The product of its digits is 1440, while the sum is 25.

The square root of 1153143421 is about 33957.9655014843. The cubic root of 1153143421 is about 1048.6432729452.

Adding to 1153143421 its reverse (1243413511), we get a palindrome (2396556932).

The spelling of 1153143421 in words is "one billion, one hundred fifty-three million, one hundred forty-three thousand, four hundred twenty-one".