1223642465 has 8 divisors (see below), whose sum is σ = 1545653760. Its totient is φ = 927392112.

The previous prime is 1223642449. The next prime is 1223642491. The reversal of 1223642465 is 5642463221.

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

It is a cyclic number.

It is not a de Polignac number, because 1223642465 - 2⁴ = 1223642449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6440129 + ... + 6440318.

It is an arithmetic number, because the mean of its divisors is an integer number (193206720).

Almost surely, 2^1223642465 is an apocalyptic number.

It is an amenable number.

1223642465 is a deficient number, since it is larger than the sum of its proper divisors (322011295).

1223642465 is a wasteful number, since it uses less digits than its factorization.

1223642465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12880471.

The product of its digits is 69120, while the sum is 35.

The square root of 1223642465 is about 34980.6012669880. The cubic root of 1223642465 is about 1069.5920840069.

The spelling of 1223642465 in words is "one billion, two hundred twenty-three million, six hundred forty-two thousand, four hundred sixty-five".