1144815715 has 8 divisors (see below), whose sum is σ = 1393128288. Its totient is φ = 902952960.

The previous prime is 1144815691. The next prime is 1144815739. The reversal of 1144815715 is 5175184411.

It is an interprime number because it is at equal distance from previous prime (1144815691) and next prime (1144815739).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1144815715 is a prime.

It is a super-2 number, since 2×1144815715² = 2621206042621922450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1612062 + ... + 1612771.

It is an arithmetic number, because the mean of its divisors is an integer number (174141036).

Almost surely, 2^1144815715 is an apocalyptic number.

1144815715 is a deficient number, since it is larger than the sum of its proper divisors (248312573).

1144815715 is an equidigital number, since it uses as much as digits as its factorization.

1144815715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224909.

The product of its digits is 22400, while the sum is 37.

The square root of 1144815715 is about 33835.1254615673. The cubic root of 1144815715 is about 1046.1128274795.

The spelling of 1144815715 in words is "one billion, one hundred forty-four million, eight hundred fifteen thousand, seven hundred fifteen".