1345511456 has 12 divisors (see below), whose sum is σ = 2648975742. Its totient is φ = 672755712.

The previous prime is 1345511437. The next prime is 1345511483. The reversal of 1345511456 is 6541155431.

It can be written as a sum of positive squares in only one way, i.e., 1029383056 + 316128400 = 32084^2 + 17780^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21023585 + ... + 21023648.

Almost surely, 2^1345511456 is an apocalyptic number.

1345511456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1345511456 is a deficient number, since it is larger than the sum of its proper divisors (1303464286).

1345511456 is an equidigital number, since it uses as much as digits as its factorization.

1345511456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42047243 (or 42047235 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 1345511456 is about 36681.2139384726. The cubic root of 1345511456 is about 1103.9832053036.

Adding to 1345511456 its reverse (6541155431), we get a palindrome (7886666887).

The spelling of 1345511456 in words is "one billion, three hundred forty-five million, five hundred eleven thousand, four hundred fifty-six".