1153541141 has 4 divisors (see below), whose sum is σ = 1157298912. Its totient is φ = 1149783372.

The previous prime is 1153541117. The next prime is 1153541197. The reversal of 1153541141 is 1411453511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1153541141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1153541141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153541041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1878425 + ... + 1879038.

It is an arithmetic number, because the mean of its divisors is an integer number (289324728).

Almost surely, 2^1153541141 is an apocalyptic number.

It is an amenable number.

1153541141 is a deficient number, since it is larger than the sum of its proper divisors (3757771).

1153541141 is an equidigital number, since it uses as much as digits as its factorization.

1153541141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757770.

The product of its digits is 1200, while the sum is 26.

The square root of 1153541141 is about 33963.8210600633. The cubic root of 1153541141 is about 1048.7638183620.

Adding to 1153541141 its reverse (1411453511), we get a palindrome (2564994652).

The spelling of 1153541141 in words is "one billion, one hundred fifty-three million, five hundred forty-one thousand, one hundred forty-one".