1453312509 has 8 divisors (see below), whose sum is σ = 2113909152. Its totient is φ = 880795440.

The previous prime is 1453312501. The next prime is 1453312513. The reversal of 1453312509 is 9052133541.

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

It is not a de Polignac number, because 1453312509 - 2³ = 1453312501 is a prime.

It is a super-2 number, since 2×1453312509² = 4224234497631750162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 44039773 = 1453312509 / (1 + 4 + 5 + 3 + 3 + 1 + 2 + 5 + 0 + 9).

It is a self number, because there is not a number n which added to its sum of digits gives 1453312509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453312501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22019854 + ... + 22019919.

It is an arithmetic number, because the mean of its divisors is an integer number (264238644).

Almost surely, 2^1453312509 is an apocalyptic number.

It is an amenable number.

1453312509 is a deficient number, since it is larger than the sum of its proper divisors (660596643).

1453312509 is a wasteful number, since it uses less digits than its factorization.

1453312509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44039787.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 1453312509 is about 38122.3360905388. The cubic root of 1453312509 is about 1132.7124409832.

The spelling of 1453312509 in words is "one billion, four hundred fifty-three million, three hundred twelve thousand, five hundred nine".