1301601652 has 24 divisors (see below), whose sum is σ = 2493237992. Its totient is φ = 590889600.

The previous prime is 1301601649. The next prime is 1301601667. The reversal of 1301601652 is 2561061031.

It can be written as a sum of positive squares in 4 ways, for example, as 87497316 + 1214104336 = 9354^2 + 34844^2 .

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 7 ways as a sum of consecutive naturals, for example, 201999 + ... + 208342.

Almost surely, 2^1301601652 is an apocalyptic number.

It is an amenable number.

1301601652 is a deficient number, since it is larger than the sum of its proper divisors (1191636340).

1301601652 is a wasteful number, since it uses less digits than its factorization.

1301601652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410419 (or 410417 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1301601652 is about 36077.7168346335. The cubic root of 1301601652 is about 1091.8409123440.

Adding to 1301601652 its reverse (2561061031), we get a palindrome (3862662683).

The spelling of 1301601652 in words is "one billion, three hundred one million, six hundred one thousand, six hundred fifty-two".