1153970887 has 2 divisors, whose sum is σ = 1153970888. Its totient is φ = 1153970886.

The previous prime is 1153970869. The next prime is 1153970893. The reversal of 1153970887 is 7880793511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1153970887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1153970887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153979887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576985443 + 576985444.

It is an arithmetic number, because the mean of its divisors is an integer number (576985444).

Almost surely, 2^1153970887 is an apocalyptic number.

1153970887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153970887 is an equidigital number, since it uses as much as digits as its factorization.

1153970887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 49.

The square root of 1153970887 is about 33970.1469970326. The cubic root of 1153970887 is about 1048.8940394359.

The spelling of 1153970887 in words is "one billion, one hundred fifty-three million, nine hundred seventy thousand, eight hundred eighty-seven".