1345420064 has 12 divisors (see below), whose sum is σ = 2648795814. Its totient is φ = 672710016.

The previous prime is 1345420061. The next prime is 1345420067. The reversal of 1345420064 is 4600245431.

It is an interprime number because it is at equal distance from previous prime (1345420061) and next prime (1345420067).

It can be written as a sum of positive squares in only one way, i.e., 846344464 + 499075600 = 29092^2 + 22340^2 .

It is a super-2 number, since 2×1345420064² = 3620310297227528192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1345420061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21022157 + ... + 21022220.

Almost surely, 2^1345420064 is an apocalyptic number.

It is an amenable number.

1345420064 is a deficient number, since it is larger than the sum of its proper divisors (1303375750).

1345420064 is an equidigital number, since it uses as much as digits as its factorization.

1345420064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42044387 (or 42044379 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 1345420064 is about 36679.9681570200. The cubic root of 1345420064 is about 1103.9582092281.

Adding to 1345420064 its reverse (4600245431), we get a palindrome (5945665495).

The spelling of 1345420064 in words is "one billion, three hundred forty-five million, four hundred twenty thousand, sixty-four".