1126615513 has 2 divisors, whose sum is σ = 1126615514. Its totient is φ = 1126615512.

The previous prime is 1126615471. The next prime is 1126615531. The reversal of 1126615513 is 3155166211.

It is a happy number.

Together with next prime (1126615531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 676624144 + 449991369 = 26012^2 + 21213^2 .

It is a cyclic number.

It is not a de Polignac number, because 1126615513 - 2¹⁷ = 1126484441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1126615543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563307756 + 563307757.

It is an arithmetic number, because the mean of its divisors is an integer number (563307757).

Almost surely, 2^1126615513 is an apocalyptic number.

It is an amenable number.

1126615513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126615513 is an equidigital number, since it uses as much as digits as its factorization.

1126615513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 1126615513 is about 33565.0936688697. The cubic root of 1126615513 is about 1040.5395108169.

The spelling of 1126615513 in words is "one billion, one hundred twenty-six million, six hundred fifteen thousand, five hundred thirteen".