1153213541 has 2 divisors, whose sum is σ = 1153213542. Its totient is φ = 1153213540.

The previous prime is 1153213511. The next prime is 1153213559. The reversal of 1153213541 is 1453123511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 846228100 + 306985441 = 29090^2 + 17521^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153213541 - 2¹⁰ = 1153212517 is a prime.

It is a super-2 number, since 2×1153213541² = 2659802942291517362, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1153213541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153213511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576606770 + 576606771.

It is an arithmetic number, because the mean of its divisors is an integer number (576606771).

Almost surely, 2^1153213541 is an apocalyptic number.

It is an amenable number.

1153213541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153213541 is an equidigital number, since it uses as much as digits as its factorization.

1153213541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 26.

The square root of 1153213541 is about 33958.9979386907. The cubic root of 1153213541 is about 1048.6645277098.

The spelling of 1153213541 in words is "one billion, one hundred fifty-three million, two hundred thirteen thousand, five hundred forty-one".