1158971503 has 2 divisors, whose sum is σ = 1158971504. Its totient is φ = 1158971502.

The previous prime is 1158971501. The next prime is 1158971521. The reversal of 1158971503 is 3051798511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1158971503 - 2¹ = 1158971501 is a prime.

Together with 1158971501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1158971501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579485751 + 579485752.

It is an arithmetic number, because the mean of its divisors is an integer number (579485752).

Almost surely, 2^1158971503 is an apocalyptic number.

1158971503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158971503 is an equidigital number, since it uses as much as digits as its factorization.

1158971503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 40.

The square root of 1158971503 is about 34043.6705277207. The cubic root of 1158971503 is about 1050.4069482301.

The spelling of 1158971503 in words is "one billion, one hundred fifty-eight million, nine hundred seventy-one thousand, five hundred three".