1345501312 has 32 divisors (see below), whose sum is σ = 2838171420. Its totient is φ = 633176064.

The previous prime is 1345501309. The next prime is 1345501319. The reversal of 1345501312 is 2131055431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1340731456 + 4769856 = 36616^2 + 2184^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (1345501319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306993 + ... + 311344.

Almost surely, 2^1345501312 is an apocalyptic number.

It is an amenable number.

1345501312 is an abundant number, since it is smaller than the sum of its proper divisors (1492670108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1345501312 is an equidigital number, since it uses as much as digits as its factorization.

1345501312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618368 (or 618356 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1345501312 is about 36681.0756657980. The cubic root of 1345501312 is about 1103.9804309351.

Adding to 1345501312 its reverse (2131055431), we get a palindrome (3476556743).

The spelling of 1345501312 in words is "one billion, three hundred forty-five million, five hundred one thousand, three hundred twelve".