1119749465 has 4 divisors (see below), whose sum is σ = 1343699364. Its totient is φ = 895799568.

The previous prime is 1119749437. The next prime is 1119749467. The reversal of 1119749465 is 5649479111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5649479111 = 3539 ⋅1596349.

It can be written as a sum of positive squares in 2 ways, for example, as 151979584 + 967769881 = 12328^2 + 31109^2 .

It is a cyclic number.

It is not a de Polignac number, because 1119749465 - 2⁸ = 1119749209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1119749467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111974942 + ... + 111974951.

It is an arithmetic number, because the mean of its divisors is an integer number (335924841).

Almost surely, 2^1119749465 is an apocalyptic number.

It is an amenable number.

1119749465 is a deficient number, since it is larger than the sum of its proper divisors (223949899).

1119749465 is an equidigital number, since it uses as much as digits as its factorization.

1119749465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223949898.

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

The square root of 1119749465 is about 33462.6577695197. The cubic root of 1119749465 is about 1038.4213799820.

The spelling of 1119749465 in words is "one billion, one hundred nineteen million, seven hundred forty-nine thousand, four hundred sixty-five".