1945000501 has 2 divisors, whose sum is σ = 1945000502. Its totient is φ = 1945000500.

The previous prime is 1945000489. The next prime is 1945000529. The reversal of 1945000501 is 1050005491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1784978001 + 160022500 = 42249^2 + 12650^2 .

It is a cyclic number.

It is not a de Polignac number, because 1945000501 - 2²⁷ = 1810782773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1945000591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972500250 + 972500251.

It is an arithmetic number, because the mean of its divisors is an integer number (972500251).

Almost surely, 2^1945000501 is an apocalyptic number.

It is an amenable number.

1945000501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1945000501 is an equidigital number, since it uses as much as digits as its factorization.

1945000501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1945000501 is about 44102.1598223942. The cubic root of 1945000501 is about 1248.2643647182.

Adding to 1945000501 its reverse (1050005491), we get a palindrome (2995005992).

The spelling of 1945000501 in words is "one billion, nine hundred forty-five million, five hundred one", and thus it is an aban number.