1115525101 has 2 divisors, whose sum is σ = 1115525102. Its totient is φ = 1115525100.

The previous prime is 1115525087. The next prime is 1115525113. The reversal of 1115525101 is 1015255111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1109889225 + 5635876 = 33315^2 + 2374^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115525101 - 2¹⁹ = 1115000813 is a prime.

It is a super-2 number, since 2×1115525101² = 2488792501922120402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1115525161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557762550 + 557762551.

It is an arithmetic number, because the mean of its divisors is an integer number (557762551).

Almost surely, 2^1115525101 is an apocalyptic number.

It is an amenable number.

1115525101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115525101 is an equidigital number, since it uses as much as digits as its factorization.

1115525101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250, while the sum is 22.

The square root of 1115525101 is about 33399.4775557942. The cubic root of 1115525101 is about 1037.1138857604.

The spelling of 1115525101 in words is "one billion, one hundred fifteen million, five hundred twenty-five thousand, one hundred one".