1115640634 has 4 divisors (see below), whose sum is σ = 1673460954. Its totient is φ = 557820316.

The previous prime is 1115640601. The next prime is 1115640637. The reversal of 1115640634 is 4360465111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 942797025 + 172843609 = 30705^2 + 13147^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1115640596 and 1115640605.

It is not an unprimeable number, because it can be changed into a prime (1115640637) 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, 278910157 + ... + 278910160.

Almost surely, 2^1115640634 is an apocalyptic number.

1115640634 is a deficient number, since it is larger than the sum of its proper divisors (557820320).

1115640634 is an equidigital number, since it uses as much as digits as its factorization.

1115640634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557820319.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1115640634 is about 33401.2070739966. The cubic root of 1115640634 is about 1037.1496885533.

The spelling of 1115640634 in words is "one billion, one hundred fifteen million, six hundred forty thousand, six hundred thirty-four".