2142155502 has 24 divisors (see below), whose sum is σ = 4649937240. Its totient is φ = 712728720.

The previous prime is 2142155497. The next prime is 2142155503. The reversal of 2142155502 is 2055512412.

2142155502 is a `hidden beast` number, since 2 + 1 + 4 + 2 + 155 + 502 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142155503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100252 + ... + 119727.

It is an arithmetic number, because the mean of its divisors is an integer number (193747385).

Almost surely, 2^2142155502 is an apocalyptic number.

2142155502 is an abundant number, since it is smaller than the sum of its proper divisors (2507781738).

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

2142155502 is a wasteful number, since it uses less digits than its factorization.

2142155502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220528 (or 220525 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2142155502 is about 46283.4257807263. The cubic root of 2142155502 is about 1289.0912619205.

Adding to 2142155502 its reverse (2055512412), we get a palindrome (4197667914).

The spelling of 2142155502 in words is "two billion, one hundred forty-two million, one hundred fifty-five thousand, five hundred two".