2190171312 has 100 divisors (see below), whose sum is σ = 7244591376. Its totient is φ = 625760640.

The previous prime is 2190171307. The next prime is 2190171317. The reversal of 2190171312 is 2131710912.

It is an interprime number because it is at equal distance from previous prime (2190171307) and next prime (2190171317).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2190171317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 111639 + ... + 129782.

Almost surely, 2^2190171312 is an apocalyptic number.

It is an amenable number.

2190171312 is an abundant number, since it is smaller than the sum of its proper divisors (5054420064).

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

2190171312 is a wasteful number, since it uses less digits than its factorization.

2190171312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241448 (or 241433 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 2190171312 is about 46799.2661480925. The cubic root of 2190171312 is about 1298.6517208699.

The spelling of 2190171312 in words is "two billion, one hundred ninety million, one hundred seventy-one thousand, three hundred twelve".