1125115501 has 2 divisors, whose sum is σ = 1125115502. Its totient is φ = 1125115500.

The previous prime is 1125115463. The next prime is 1125115507. The reversal of 1125115501 is 1055115211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1010604100 + 114511401 = 31790^2 + 10701^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125115501 - 2⁷ = 1125115373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125115507) 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, 562557750 + 562557751.

It is an arithmetic number, because the mean of its divisors is an integer number (562557751).

Almost surely, 2^1125115501 is an apocalyptic number.

It is an amenable number.

1125115501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125115501 is an equidigital number, since it uses as much as digits as its factorization.

1125115501 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 1125115501 is about 33542.7414055560. The cubic root of 1125115501 is about 1040.0775031615.

The spelling of 1125115501 in words is "one billion, one hundred twenty-five million, one hundred fifteen thousand, five hundred one".