1345178313 has 8 divisors (see below), whose sum is σ = 1992856800. Its totient is φ = 896785524.

The previous prime is 1345178309. The next prime is 1345178323. The reversal of 1345178313 is 3138715431.

1345178313 is a `hidden beast` number, since 134 + 517 + 8 + 3 + 1 + 3 = 666.

It is not a de Polignac number, because 1345178313 - 2² = 1345178309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345178323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24910683 + ... + 24910736.

It is an arithmetic number, because the mean of its divisors is an integer number (249107100).

Almost surely, 2^1345178313 is an apocalyptic number.

It is an amenable number.

1345178313 is a deficient number, since it is larger than the sum of its proper divisors (647678487).

1345178313 is an equidigital number, since it uses as much as digits as its factorization.

1345178313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49821428 (or 49821422 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 1345178313 is about 36676.6725998965. The cubic root of 1345178313 is about 1103.8920839104.

The spelling of 1345178313 in words is "one billion, three hundred forty-five million, one hundred seventy-eight thousand, three hundred thirteen".