1945051201 has 8 divisors (see below), whose sum is σ = 1974303720. Its totient is φ = 1915869312.

The previous prime is 1945051169. The next prime is 1945051211. The reversal of 1945051201 is 1021505491.

It can be written as a sum of positive squares in 4 ways, for example, as 87441201 + 1857610000 = 9351^2 + 43100^2 .

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 1945051201 - 2⁵ = 1945051169 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 1945051201.

It is not an unprimeable number, because it can be changed into a prime (1945051211) 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, 39195 + ... + 73663.

It is an arithmetic number, because the mean of its divisors is an integer number (246787965).

Almost surely, 2^1945051201 is an apocalyptic number.

It is an amenable number.

1945051201 is a deficient number, since it is larger than the sum of its proper divisors (29252519).

1945051201 is an equidigital number, since it uses as much as digits as its factorization.

1945051201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35315.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1945051201 is about 44102.7346204292. The cubic root of 1945051201 is about 1248.2752107229.

Adding to 1945051201 its reverse (1021505491), we get a palindrome (2966556692).

The spelling of 1945051201 in words is "one billion, nine hundred forty-five million, fifty-one thousand, two hundred one".