1153141221 has 8 divisors (see below), whose sum is σ = 1560469984. Its totient is φ = 757286640.

The previous prime is 1153141207. The next prime is 1153141237. The reversal of 1153141221 is 1221413511.

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

It is not a de Polignac number, because 1153141221 - 2²² = 1148946917 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 (1153141261) 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, 2868310 + ... + 2868711.

It is an arithmetic number, because the mean of its divisors is an integer number (195058748).

Almost surely, 2^1153141221 is an apocalyptic number.

It is an amenable number.

1153141221 is a deficient number, since it is larger than the sum of its proper divisors (407328763).

1153141221 is an equidigital number, since it uses as much as digits as its factorization.

1153141221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5737091.

The product of its digits is 240, while the sum is 21.

The square root of 1153141221 is about 33957.9331084800. The cubic root of 1153141221 is about 1048.6426060675.

Adding to 1153141221 its reverse (1221413511), we get a palindrome (2374554732).

The spelling of 1153141221 in words is "one billion, one hundred fifty-three million, one hundred forty-one thousand, two hundred twenty-one".