1201325005 has 4 divisors (see below), whose sum is σ = 1441590012. Its totient is φ = 961060000.

The previous prime is 1201324997. The next prime is 1201325053. The reversal of 1201325005 is 5005231021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 739676809 + 461648196 = 27197^2 + 21486^2 .

It is not a de Polignac number, because 1201325005 - 2³ = 1201324997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120132496 + ... + 120132505.

It is an arithmetic number, because the mean of its divisors is an integer number (360397503).

Almost surely, 2^1201325005 is an apocalyptic number.

It is an amenable number.

1201325005 is a deficient number, since it is larger than the sum of its proper divisors (240265007).

1201325005 is an equidigital number, since it uses as much as digits as its factorization.

1201325005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240265006.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1201325005 is about 34660.1356748643. The cubic root of 1201325005 is about 1063.0495441828.

Adding to 1201325005 its reverse (5005231021), we get a palindrome (6206556026).

The spelling of 1201325005 in words is "one billion, two hundred one million, three hundred twenty-five thousand, five".