1345148089 has 4 divisors (see below), whose sum is σ = 1362175360. Its totient is φ = 1328120820.

The previous prime is 1345148083. The next prime is 1345148143. The reversal of 1345148089 is 9808415431.

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.

It is a cyclic number.

It is not a de Polignac number, because 1345148089 - 2³ = 1345148081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345148081) 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, 8513517 + ... + 8513674.

It is an arithmetic number, because the mean of its divisors is an integer number (340543840).

Almost surely, 2^1345148089 is an apocalyptic number.

It is an amenable number.

1345148089 is a deficient number, since it is larger than the sum of its proper divisors (17027271).

1345148089 is an equidigital number, since it uses as much as digits as its factorization.

1345148089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17027270.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1345148089 is about 36676.2605645668. The cubic root of 1345148089 is about 1103.8838162867.

The spelling of 1345148089 in words is "one billion, three hundred forty-five million, one hundred forty-eight thousand, eighty-nine".