2142807156 has 192 divisors, whose sum is σ = 6721792000. Its totient is φ = 576668160.

The previous prime is 2142807113. The next prime is 2142807197. The reversal of 2142807156 is 6517082412.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2142807156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3461415 + ... + 3462033.

Almost surely, 2^2142807156 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 2142807156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3360896000).

2142807156 is an abundant number, since it is smaller than the sum of its proper divisors (4578984844).

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

2142807156 is a wasteful number, since it uses less digits than its factorization.

2142807156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 2142807156 is about 46290.4650657130. The cubic root of 2142807156 is about 1289.2219645872.

Adding to 2142807156 its reverse (6517082412), we get a palindrome (8659889568).

The spelling of 2142807156 in words is "two billion, one hundred forty-two million, eight hundred seven thousand, one hundred fifty-six".