1201601264 has 20 divisors (see below), whose sum is σ = 2328682056. Its totient is φ = 600651072.

The previous prime is 1201601251. The next prime is 1201601267. The reversal of 1201601264 is 4621061021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201601267) 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 in 3 ways as a sum of consecutive naturals, for example, 87062 + ... + 99914.

Almost surely, 2^1201601264 is an apocalyptic number.

It is an amenable number.

1201601264 is a deficient number, since it is larger than the sum of its proper divisors (1127080792).

1201601264 is a wasteful number, since it uses less digits than its factorization.

1201601264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18704 (or 18698 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1201601264 is about 34664.1207013823. The cubic root of 1201601264 is about 1063.1310249073.

Adding to 1201601264 its reverse (4621061021), we get a palindrome (5822662285).

The spelling of 1201601264 in words is "one billion, two hundred one million, six hundred one thousand, two hundred sixty-four".