1261712060 has 96 divisors (see below), whose sum is σ = 3093552000. Its totient is φ = 423346176.

The previous prime is 1261712057. The next prime is 1261712093. The reversal of 1261712060 is 602171621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1357676 + ... + 1358604.

It is an arithmetic number, because the mean of its divisors is an integer number (32224500).

Almost surely, 2^1261712060 is an apocalyptic number.

1261712060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1261712060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546776000).

1261712060 is an abundant number, since it is smaller than the sum of its proper divisors (1831839940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1261712060 is a wasteful number, since it uses less digits than its factorization.

1261712060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1261712060 is about 35520.5864253393. The cubic root of 1261712060 is about 1080.5712741273.

Adding to 1261712060 its reverse (602171621), we get a palindrome (1863883681).

The spelling of 1261712060 in words is "one billion, two hundred sixty-one million, seven hundred twelve thousand, sixty".