1065055645 has 8 divisors (see below), whose sum is σ = 1278540504. Its totient is φ = 851728704.

The previous prime is 1065055609. The next prime is 1065055657. The reversal of 1065055645 is 5465505601.

It can be written as a sum of positive squares in 4 ways, for example, as 63776196 + 1001279449 = 7986^2 + 31643^2 .

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 1065055645 - 2²¹ = 1062958493 is a prime.

It is a super-2 number, since 2×1065055645² = 2268687053892732050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24094 + ... + 52063.

It is an arithmetic number, because the mean of its divisors is an integer number (159817563).

Almost surely, 2^1065055645 is an apocalyptic number.

It is an amenable number.

1065055645 is a deficient number, since it is larger than the sum of its proper divisors (213484859).

1065055645 is an equidigital number, since it uses as much as digits as its factorization.

1065055645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78959.

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 1065055645 is about 32635.1902859475. The cubic root of 1065055645 is about 1021.2312585482.

The spelling of 1065055645 in words is "one billion, sixty-five million, fifty-five thousand, six hundred forty-five".