2197109136 has 120 divisors (see below), whose sum is σ = 6041311744. Its totient is φ = 687536640.

The previous prime is 2197109119. The next prime is 2197109143. The reversal of 2197109136 is 6319017912.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2197109094 and 2197109103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1492881 + ... + 1494351.

Almost surely, 2^2197109136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2197109136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3020655872).

2197109136 is an abundant number, since it is smaller than the sum of its proper divisors (3844202608).

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

2197109136 is a wasteful number, since it uses less digits than its factorization.

2197109136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 2197109136 is about 46873.3307542786. The cubic root of 2197109136 is about 1300.0215254818.

The spelling of 2197109136 in words is "two billion, one hundred ninety-seven million, one hundred nine thousand, one hundred thirty-six".