1300065445 has 16 divisors (see below), whose sum is σ = 1840462848. Its totient is φ = 862715520.

The previous prime is 1300065439. The next prime is 1300065467. The reversal of 1300065445 is 5445600031.

It is not a de Polignac number, because 1300065445 - 2²⁷ = 1165847717 is a prime.

It is a super-2 number, since 2×1300065445² = 3380340322566096050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598024 + ... + 600193.

It is an arithmetic number, because the mean of its divisors is an integer number (115028928).

Almost surely, 2^1300065445 is an apocalyptic number.

It is an amenable number.

1300065445 is a deficient number, since it is larger than the sum of its proper divisors (540397403).

1300065445 is a wasteful number, since it uses less digits than its factorization.

1300065445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198260.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1300065445 is about 36056.4203020766. The cubic root of 1300065445 is about 1091.4111971659.

Adding to 1300065445 its reverse (5445600031), we get a palindrome (6745665476).

The spelling of 1300065445 in words is "one billion, three hundred million, sixty-five thousand, four hundred forty-five".