1201241605 has 8 divisors (see below), whose sum is σ = 1447472664. Its totient is φ = 957004800.

The previous prime is 1201241563. The next prime is 1201241659. The reversal of 1201241605 is 5061421021.

It can be written as a sum of positive squares in 4 ways, for example, as 444661569 + 756580036 = 21087^2 + 27506^2 .

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

It is not a de Polignac number, because 1201241605 - 2²⁵ = 1167687173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497236 + ... + 499645.

It is an arithmetic number, because the mean of its divisors is an integer number (180934083).

Almost surely, 2^1201241605 is an apocalyptic number.

It is an amenable number.

1201241605 is a deficient number, since it is larger than the sum of its proper divisors (246231059).

1201241605 is an equidigital number, since it uses as much as digits as its factorization.

1201241605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997127.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1201241605 is about 34658.9325427082. The cubic root of 1201241605 is about 1063.0249434618.

Adding to 1201241605 its reverse (5061421021), we get a palindrome (6262662626).

The spelling of 1201241605 in words is "one billion, two hundred one million, two hundred forty-one thousand, six hundred five".