1161522499 has 2 divisors, whose sum is σ = 1161522500. Its totient is φ = 1161522498.

The previous prime is 1161522473. The next prime is 1161522541. The reversal of 1161522499 is 9942251611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1161522499 - 2⁷ = 1161522371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161522419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580761249 + 580761250.

It is an arithmetic number, because the mean of its divisors is an integer number (580761250).

Almost surely, 2^1161522499 is an apocalyptic number.

1161522499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161522499 is an equidigital number, since it uses as much as digits as its factorization.

1161522499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 40.

The square root of 1161522499 is about 34081.1164576514. The cubic root of 1161522499 is about 1051.1770621684.

The spelling of 1161522499 in words is "one billion, one hundred sixty-one million, five hundred twenty-two thousand, four hundred ninety-nine".