1345001689 has 8 divisors (see below), whose sum is σ = 1382008320. Its totient is φ = 1308029616.

The previous prime is 1345001657. The next prime is 1345001717. The reversal of 1345001689 is 9861005431.

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 1345001689 - 2⁵ = 1345001657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345001629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83592 + ... + 98374.

It is an arithmetic number, because the mean of its divisors is an integer number (172751040).

Almost surely, 2^1345001689 is an apocalyptic number.

It is an amenable number.

1345001689 is a deficient number, since it is larger than the sum of its proper divisors (37006631).

1345001689 is a wasteful number, since it uses less digits than its factorization.

1345001689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17279.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 1345001689 is about 36674.2646688383. The cubic root of 1345001689 is about 1103.8437675478.

The spelling of 1345001689 in words is "one billion, three hundred forty-five million, one thousand, six hundred eighty-nine".