1201436864 has 14 divisors (see below), whose sum is σ = 2384101404. Its totient is φ = 600718400.

The previous prime is 1201436857. The next prime is 1201436881. The reversal of 1201436864 is 4686341021.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9386162 + ... + 9386289.

Almost surely, 2^1201436864 is an apocalyptic number.

It is an amenable number.

1201436864 is a deficient number, since it is larger than the sum of its proper divisors (1182664540).

1201436864 is an equidigital number, since it uses as much as digits as its factorization.

1201436864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18772463 (or 18772453 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 1201436864 is about 34661.7492922674. The cubic root of 1201436864 is about 1063.0825377435.

Adding to 1201436864 its reverse (4686341021), we get a palindrome (5887777885).

The spelling of 1201436864 in words is "one billion, two hundred one million, four hundred thirty-six thousand, eight hundred sixty-four".