1153120143 has 16 divisors (see below), whose sum is σ = 1757684736. Its totient is φ = 658719840.

The previous prime is 1153120141. The next prime is 1153120147. The reversal of 1153120143 is 3410213511.

It is not a de Polignac number, because 1153120143 - 2¹ = 1153120141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153120141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82858 + ... + 95768.

It is an arithmetic number, because the mean of its divisors is an integer number (109855296).

Almost surely, 2^1153120143 is an apocalyptic number.

1153120143 is a deficient number, since it is larger than the sum of its proper divisors (604564593).

1153120143 is a wasteful number, since it uses less digits than its factorization.

1153120143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17174.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1153120143 is about 33957.6227524837. The cubic root of 1153120143 is about 1048.6362167306.

Adding to 1153120143 its reverse (3410213511), we get a palindrome (4563333654).

The spelling of 1153120143 in words is "one billion, one hundred fifty-three million, one hundred twenty thousand, one hundred forty-three".