1345432445 has 48 divisors (see below), whose sum is σ = 2007840960. Its totient is φ = 859912704.

The previous prime is 1345432423. The next prime is 1345432483. The reversal of 1345432445 is 5442345431.

It is not a de Polignac number, because 1345432445 - 2¹⁰ = 1345431421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 444146 + ... + 447164.

It is an arithmetic number, because the mean of its divisors is an integer number (41830020).

Almost surely, 2^1345432445 is an apocalyptic number.

It is an amenable number.

1345432445 is a deficient number, since it is larger than the sum of its proper divisors (662408515).

1345432445 is a wasteful number, since it uses less digits than its factorization.

1345432445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162 (or 3155 counting only the distinct ones).

The product of its digits is 115200, while the sum is 35.

The square root of 1345432445 is about 36680.1369272253. The cubic root of 1345432445 is about 1103.9615955471.

Adding to 1345432445 its reverse (5442345431), we get a palindrome (6787777876).

The spelling of 1345432445 in words is "one billion, three hundred forty-five million, four hundred thirty-two thousand, four hundred forty-five".