1153142447 has 2 divisors, whose sum is σ = 1153142448. Its totient is φ = 1153142446.

The previous prime is 1153142437. The next prime is 1153142461. The reversal of 1153142447 is 7442413511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1153142447 - 2¹² = 1153138351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153142437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576571223 + 576571224.

It is an arithmetic number, because the mean of its divisors is an integer number (576571224).

Almost surely, 2^1153142447 is an apocalyptic number.

1153142447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153142447 is an equidigital number, since it uses as much as digits as its factorization.

1153142447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 32.

The square root of 1153142447 is about 33957.9511602217. The cubic root of 1153142447 is about 1048.6429777004.

Adding to 1153142447 its reverse (7442413511), we get a palindrome (8595555958).

The spelling of 1153142447 in words is "one billion, one hundred fifty-three million, one hundred forty-two thousand, four hundred forty-seven".