1945328601 has 8 divisors (see below), whose sum is σ = 2629302880. Its totient is φ = 1279120032.

The previous prime is 1945328597. The next prime is 1945328603. The reversal of 1945328601 is 1068235491.

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

It is not a de Polignac number, because 1945328601 - 2² = 1945328597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1945328601.

It is not an unprimeable number, because it can be changed into a prime (1945328603) 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, 4441171 + ... + 4441608.

It is an arithmetic number, because the mean of its divisors is an integer number (328662860).

Almost surely, 2^1945328601 is an apocalyptic number.

It is an amenable number.

1945328601 is a deficient number, since it is larger than the sum of its proper divisors (683974279).

1945328601 is an equidigital number, since it uses as much as digits as its factorization.

1945328601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8882855.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1945328601 is about 44105.8794380069. The cubic root of 1945328601 is about 1248.3345502205.

The spelling of 1945328601 in words is "one billion, nine hundred forty-five million, three hundred twenty-eight thousand, six hundred one".