1261707352 has 16 divisors (see below), whose sum is σ = 2389125600. Its totient is φ = 624607200.

The previous prime is 1261707329. The next prime is 1261707371. The reversal of 1261707352 is 2537071621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779952 + ... + 781567.

It is an arithmetic number, because the mean of its divisors is an integer number (149320350).

Almost surely, 2^1261707352 is an apocalyptic number.

It is an amenable number.

1261707352 is a deficient number, since it is larger than the sum of its proper divisors (1127418248).

1261707352 is a wasteful number, since it uses less digits than its factorization.

1261707352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561626 (or 1561622 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 1261707352 is about 35520.5201538491. The cubic root of 1261707352 is about 1080.5699300975.

Adding to 1261707352 its reverse (2537071621), we get a palindrome (3798778973).

The spelling of 1261707352 in words is "one billion, two hundred sixty-one million, seven hundred seven thousand, three hundred fifty-two".