1153141421 has 2 divisors, whose sum is σ = 1153141422. Its totient is φ = 1153141420.

The previous prime is 1153141417. The next prime is 1153141447. The reversal of 1153141421 is 1241413511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1114825321 + 38316100 = 33389^2 + 6190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153141421 - 2² = 1153141417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153147421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576570710 + 576570711.

It is an arithmetic number, because the mean of its divisors is an integer number (576570711).

Almost surely, 2^1153141421 is an apocalyptic number.

It is an amenable number.

1153141421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153141421 is an equidigital number, since it uses as much as digits as its factorization.

1153141421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 23.

The square root of 1153141421 is about 33957.9360532998. The cubic root of 1153141421 is about 1048.6426666928.

Adding to 1153141421 its reverse (1241413511), we get a palindrome (2394554932).

The spelling of 1153141421 in words is "one billion, one hundred fifty-three million, one hundred forty-one thousand, four hundred twenty-one".