1345547793 has 4 divisors (see below), whose sum is σ = 1794063728. Its totient is φ = 897031860.

The previous prime is 1345547789. The next prime is 1345547837. The reversal of 1345547793 is 3977455431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3977455431 = 3 ⋅1325818477.

It is not a de Polignac number, because 1345547793 - 2² = 1345547789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345547783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224257963 + ... + 224257968.

It is an arithmetic number, because the mean of its divisors is an integer number (448515932).

Almost surely, 2^1345547793 is an apocalyptic number.

It is an amenable number.

1345547793 is a deficient number, since it is larger than the sum of its proper divisors (448515935).

1345547793 is an equidigital number, since it uses as much as digits as its factorization.

1345547793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448515934.

The product of its digits is 1587600, while the sum is 48.

The square root of 1345547793 is about 36681.7092431637. The cubic root of 1345547793 is about 1103.9931433031.

The spelling of 1345547793 in words is "one billion, three hundred forty-five million, five hundred forty-seven thousand, seven hundred ninety-three".