1345213544 has 16 divisors (see below), whose sum is σ = 2529153600. Its totient is φ = 670772592.

The previous prime is 1345213543. The next prime is 1345213601. The reversal of 1345213544 is 4453125431.

It is a super-2 number, since 2×1345213544² = 3619198957922079872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1345213544.

It is not an unprimeable number, because it can be changed into a prime (1345213543) 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, 226154 + ... + 232025.

It is an arithmetic number, because the mean of its divisors is an integer number (158072100).

Almost surely, 2^1345213544 is an apocalyptic number.

It is an amenable number.

1345213544 is a deficient number, since it is larger than the sum of its proper divisors (1183940056).

1345213544 is a wasteful number, since it uses less digits than its factorization.

1345213544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458552 (or 458548 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 1345213544 is about 36677.1528884127. The cubic root of 1345213544 is about 1103.9017210175.

Adding to 1345213544 its reverse (4453125431), we get a palindrome (5798338975).

The spelling of 1345213544 in words is "one billion, three hundred forty-five million, two hundred thirteen thousand, five hundred forty-four".