1345689001 has 8 divisors (see below), whose sum is σ = 1429717320. Its totient is φ = 1264169088.

The previous prime is 1345688963. The next prime is 1345689011. The reversal of 1345689001 is 1009865431.

It can be written as a sum of positive squares in 4 ways, for example, as 198105625 + 1147583376 = 14075^2 + 33876^2 .

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 1345689001 - 2¹⁷ = 1345557929 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 (1345689011) 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, 625996 + ... + 628141.

It is an arithmetic number, because the mean of its divisors is an integer number (178714665).

Almost surely, 2^1345689001 is an apocalyptic number.

It is an amenable number.

1345689001 is a deficient number, since it is larger than the sum of its proper divisors (84028319).

1345689001 is a wasteful number, since it uses less digits than its factorization.

1345689001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254203.

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

The square root of 1345689001 is about 36683.6339666615. The cubic root of 1345689001 is about 1104.0317613320.

The spelling of 1345689001 in words is "one billion, three hundred forty-five million, six hundred eighty-nine thousand, one".