1201871960 has 16 divisors (see below), whose sum is σ = 2704212000. Its totient is φ = 480748768.

The previous prime is 1201871903. The next prime is 1201871963. The reversal of 1201871960 is 691781021.

It is a self number, because there is not a number n which added to its sum of digits gives 1201871960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201871963) 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, 15023360 + ... + 15023439.

It is an arithmetic number, because the mean of its divisors is an integer number (169013250).

Almost surely, 2^1201871960 is an apocalyptic number.

1201871960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201871960 is an abundant number, since it is smaller than the sum of its proper divisors (1502340040).

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

1201871960 is a wasteful number, since it uses less digits than its factorization.

1201871960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30046810 (or 30046806 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 1201871960 is about 34668.0250374895. The cubic root of 1201871960 is about 1063.2108527494.

The spelling of 1201871960 in words is "one billion, two hundred one million, eight hundred seventy-one thousand, nine hundred sixty".