1345023545 has 8 divisors (see below), whose sum is σ = 1618602696. Its totient is φ = 1072969216.

The previous prime is 1345023541. The next prime is 1345023551. The reversal of 1345023545 is 5453205431.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29365561 + 1315657984 = 5419^2 + 36272^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1345023545 - 2² = 1345023541 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345023541) 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, 379262 + ... + 382791.

It is an arithmetic number, because the mean of its divisors is an integer number (202325337).

Almost surely, 2^1345023545 is an apocalyptic number.

It is an amenable number.

1345023545 is a deficient number, since it is larger than the sum of its proper divisors (273579151).

1345023545 is an equidigital number, since it uses as much as digits as its factorization.

1345023545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762411.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 1345023545 is about 36674.5626422456. The cubic root of 1345023545 is about 1103.8497465932.

Adding to 1345023545 its reverse (5453205431), we get a palindrome (6798228976).

The spelling of 1345023545 in words is "one billion, three hundred forty-five million, twenty-three thousand, five hundred forty-five".