1345242465 has 64 divisors (see below), whose sum is σ = 2877081600. Its totient is φ = 582593472.

The previous prime is 1345242461. The next prime is 1345242491. The reversal of 1345242465 is 5642425431.

It is not a de Polignac number, because 1345242465 - 2² = 1345242461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345242461) 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 63 ways as a sum of consecutive naturals, for example, 19507 + ... + 55416.

It is an arithmetic number, because the mean of its divisors is an integer number (44954400).

Almost surely, 2^1345242465 is an apocalyptic number.

1345242465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1345242465 is an abundant number, since it is smaller than the sum of its proper divisors (1531839135).

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

1345242465 is a wasteful number, since it uses less digits than its factorization.

1345242465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74963 (or 74957 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 1345242465 is about 36677.5471508115. The cubic root of 1345242465 is about 1103.9096319580.

Adding to 1345242465 its reverse (5642425431), we get a palindrome (6987667896).

The spelling of 1345242465 in words is "one billion, three hundred forty-five million, two hundred forty-two thousand, four hundred sixty-five".