2195237142 has 72 divisors (see below), whose sum is σ = 5563866672. Its totient is φ = 623700000.

The previous prime is 2195237141. The next prime is 2195237153. The reversal of 2195237142 is 2417325912.

2195237142 is a `hidden beast` number, since 21 + 9 + 523 + 71 + 42 = 666.

It is a super-2 number, since 2×2195237142² = 9638132219232656328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2195237097 and 2195237106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195237141) 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 35 ways as a sum of consecutive naturals, for example, 152767 + ... + 166517.

It is an arithmetic number, because the mean of its divisors is an integer number (77275926).

Almost surely, 2^2195237142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2195237142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2781933336).

2195237142 is an abundant number, since it is smaller than the sum of its proper divisors (3368629530).

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

2195237142 is a wasteful number, since it uses less digits than its factorization.

2195237142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13954 (or 13944 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 2195237142 is about 46853.3578519192. The cubic root of 2195237142 is about 1299.6522032126.

The spelling of 2195237142 in words is "two billion, one hundred ninety-five million, two hundred thirty-seven thousand, one hundred forty-two".