1202861172 has 12 divisors (see below), whose sum is σ = 2806676096. Its totient is φ = 400953720.

The previous prime is 1202861167. The next prime is 1202861173. The reversal of 1202861172 is 2711682021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202861173) 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, 50119204 + ... + 50119227.

Almost surely, 2^1202861172 is an apocalyptic number.

1202861172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202861172 is an abundant number, since it is smaller than the sum of its proper divisors (1603814924).

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

1202861172 is a wasteful number, since it uses less digits than its factorization.

1202861172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100238438 (or 100238436 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 1202861172 is about 34682.2890248034. The cubic root of 1202861172 is about 1063.5024679831.

The spelling of 1202861172 in words is "one billion, two hundred two million, eight hundred sixty-one thousand, one hundred seventy-two".