1115964749 has 4 divisors (see below), whose sum is σ = 1116216864. Its totient is φ = 1115712636.

The previous prime is 1115964743. The next prime is 1115964799. The reversal of 1115964749 is 9474695111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1115964749 - 2²⁴ = 1099187533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115964743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119297 + ... + 128310.

It is an arithmetic number, because the mean of its divisors is an integer number (279054216).

Almost surely, 2^1115964749 is an apocalyptic number.

It is an amenable number.

1115964749 is a deficient number, since it is larger than the sum of its proper divisors (252115).

1115964749 is an equidigital number, since it uses as much as digits as its factorization.

1115964749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252114.

The product of its digits is 272160, while the sum is 47.

The square root of 1115964749 is about 33406.0585672719. The cubic root of 1115964749 is about 1037.2501161202.

The spelling of 1115964749 in words is "one billion, one hundred fifteen million, nine hundred sixty-four thousand, seven hundred forty-nine".