1345663542 has 16 divisors (see below), whose sum is σ = 2756969712. Its totient is φ = 437614080.

The previous prime is 1345663513. The next prime is 1345663547. The reversal of 1345663542 is 2453665431.

It is a self number, because there is not a number n which added to its sum of digits gives 1345663542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345663547) 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 7 ways as a sum of consecutive naturals, for example, 2734843 + ... + 2735334.

It is an arithmetic number, because the mean of its divisors is an integer number (172310607).

Almost surely, 2^1345663542 is an apocalyptic number.

1345663542 is an abundant number, since it is smaller than the sum of its proper divisors (1411306170).

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

1345663542 is a wasteful number, since it uses less digits than its factorization.

1345663542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5470223.

The product of its digits is 259200, while the sum is 39.

The square root of 1345663542 is about 36683.2869574143. The cubic root of 1345663542 is about 1104.0247989205.

The spelling of 1345663542 in words is "one billion, three hundred forty-five million, six hundred sixty-three thousand, five hundred forty-two".