1191973060 has 12 divisors (see below), whose sum is σ = 2503143468. Its totient is φ = 476789216.

The previous prime is 1191973049. The next prime is 1191973067. The reversal of 1191973060 is 603791911.

It can be written as a sum of positive squares in 2 ways, for example, as 460703296 + 731269764 = 21464^2 + 27042^2 .

It is not an unprimeable number, because it can be changed into a prime (1191973067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29799307 + ... + 29799346.

It is an arithmetic number, because the mean of its divisors is an integer number (208595289).

Almost surely, 2^1191973060 is an apocalyptic number.

1191973060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1191973060 is an abundant number, since it is smaller than the sum of its proper divisors (1311170408).

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

1191973060 is a wasteful number, since it uses less digits than its factorization.

1191973060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59598662 (or 59598660 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 1191973060 is about 34524.9628529851. The cubic root of 1191973060 is about 1060.2838506470.

The spelling of 1191973060 in words is "one billion, one hundred ninety-one million, nine hundred seventy-three thousand, sixty".