1261482767 has 8 divisors (see below), whose sum is σ = 1280956800. Its totient is φ = 1242027864.

The previous prime is 1261482749. The next prime is 1261482779. The reversal of 1261482767 is 7672841621.

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

It is a cyclic number.

It is not a de Polignac number, because 1261482767 - 2¹² = 1261478671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1261482727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185534 + ... + 192212.

It is an arithmetic number, because the mean of its divisors is an integer number (160119600).

Almost surely, 2^1261482767 is an apocalyptic number.

1261482767 is a deficient number, since it is larger than the sum of its proper divisors (19474033).

1261482767 is an equidigital number, since it uses as much as digits as its factorization.

1261482767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9565.

The product of its digits is 225792, while the sum is 44.

The square root of 1261482767 is about 35517.3586715003. The cubic root of 1261482767 is about 1080.5058121656.

The spelling of 1261482767 in words is "one billion, two hundred sixty-one million, four hundred eighty-two thousand, seven hundred sixty-seven".