1115051501 has 2 divisors, whose sum is σ = 1115051502. Its totient is φ = 1115051500.

The previous prime is 1115051489. The next prime is 1115051503. The reversal of 1115051501 is 1051505111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 956417476 + 158634025 = 30926^2 + 12595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115051501 is a prime.

Together with 1115051503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115051503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557525750 + 557525751.

It is an arithmetic number, because the mean of its divisors is an integer number (557525751).

Almost surely, 2^1115051501 is an apocalyptic number.

It is an amenable number.

1115051501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115051501 is an equidigital number, since it uses as much as digits as its factorization.

1115051501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125, while the sum is 20.

The square root of 1115051501 is about 33392.3868718605. The cubic root of 1115051501 is about 1036.9670949016.

Adding to 1115051501 its reverse (1051505111), we get a palindrome (2166556612).

The spelling of 1115051501 in words is "one billion, one hundred fifteen million, fifty-one thousand, five hundred one".