1345651967 has 4 divisors (see below), whose sum is σ = 1467983976. Its totient is φ = 1223319960.

The previous prime is 1345651963. The next prime is 1345651969. The reversal of 1345651967 is 7691565431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7691565431 = 11 ⋅699233221.

It is a cyclic number.

It is not a de Polignac number, because 1345651967 - 2² = 1345651963 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345651963) 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, 61165988 + ... + 61166009.

It is an arithmetic number, because the mean of its divisors is an integer number (366995994).

Almost surely, 2^1345651967 is an apocalyptic number.

1345651967 is a deficient number, since it is larger than the sum of its proper divisors (122332009).

1345651967 is a wasteful number, since it uses less digits than its factorization.

1345651967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122332008.

The product of its digits is 680400, while the sum is 47.

The square root of 1345651967 is about 36683.1291876797. The cubic root of 1345651967 is about 1104.0216334131.

The spelling of 1345651967 in words is "one billion, three hundred forty-five million, six hundred fifty-one thousand, nine hundred sixty-seven".