1145660465 has 8 divisors (see below), whose sum is σ = 1377528768. Its totient is φ = 914704240.

The previous prime is 1145660443. The next prime is 1145660479. The reversal of 1145660465 is 5640665411.

It is a happy number.

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

It is not a de Polignac number, because 1145660465 - 2²⁶ = 1078551601 is a prime.

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, 225251 + ... + 230280.

It is an arithmetic number, because the mean of its divisors is an integer number (172191096).

Almost surely, 2^1145660465 is an apocalyptic number.

It is an amenable number.

1145660465 is a deficient number, since it is larger than the sum of its proper divisors (231868303).

1145660465 is an equidigital number, since it uses as much as digits as its factorization.

1145660465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456039.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 1145660465 is about 33847.6064884949. The cubic root of 1145660465 is about 1046.3700702040.

The spelling of 1145660465 in words is "one billion, one hundred forty-five million, six hundred sixty thousand, four hundred sixty-five".