1201500445 has 16 divisors (see below), whose sum is σ = 1497426480. Its totient is φ = 924701184.

The previous prime is 1201500437. The next prime is 1201500467. The reversal of 1201500445 is 5440051021.

It can be written as a sum of positive squares in 8 ways, for example, as 5654884 + 1195845561 = 2378^2 + 34581^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201500445 - 2³ = 1201500437 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 20022 + ... + 52951.

It is an arithmetic number, because the mean of its divisors is an integer number (93589155).

Almost surely, 2^1201500445 is an apocalyptic number.

It is an amenable number.

1201500445 is a deficient number, since it is larger than the sum of its proper divisors (295926035).

1201500445 is an equidigital number, since it uses as much as digits as its factorization.

1201500445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73104.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1201500445 is about 34662.6664438846. Note that the first 3 decimals coincide. The cubic root of 1201500445 is about 1063.1012904722.

Adding to 1201500445 its reverse (5440051021), we get a palindrome (6641551466).

The spelling of 1201500445 in words is "one billion, two hundred one million, five hundred thousand, four hundred forty-five".