1345691358 has 24 divisors (see below), whose sum is σ = 3180725496. Its totient is φ = 407785200.

The previous prime is 1345691351. The next prime is 1345691363. The reversal of 1345691358 is 8531965431.

1345691358 is a `hidden beast` number, since 1 + 34 + 569 + 1 + 3 + 58 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345691351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3398013 + ... + 3398408.

It is an arithmetic number, because the mean of its divisors is an integer number (132530229).

Almost surely, 2^1345691358 is an apocalyptic number.

1345691358 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1345691358 is an abundant number, since it is smaller than the sum of its proper divisors (1835034138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1345691358 is a wasteful number, since it uses less digits than its factorization.

1345691358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6796440 (or 6796437 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 1345691358 is about 36683.6660926904. Note that the first 3 decimals coincide. The cubic root of 1345691358 is about 1104.0324059092.

The spelling of 1345691358 in words is "one billion, three hundred forty-five million, six hundred ninety-one thousand, three hundred fifty-eight".