1345051646 has 4 divisors (see below), whose sum is σ = 2017577472. Its totient is φ = 672525822.

The previous prime is 1345051627. The next prime is 1345051651. The reversal of 1345051646 is 6461505431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6461505431 = 1493 ⋅4327867.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336262910 + ... + 336262913.

It is an arithmetic number, because the mean of its divisors is an integer number (504394368).

Almost surely, 2^1345051646 is an apocalyptic number.

1345051646 is a deficient number, since it is larger than the sum of its proper divisors (672525826).

1345051646 is an equidigital number, since it uses as much as digits as its factorization.

1345051646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672525825.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 1345051646 is about 36674.9457531978. The cubic root of 1345051646 is about 1103.8574339595.

The spelling of 1345051646 in words is "one billion, three hundred forty-five million, fifty-one thousand, six hundred forty-six".