2142787530 has 64 divisors (see below), whose sum is σ = 5543008128. Its totient is φ = 527005440.

The previous prime is 2142787523. The next prime is 2142787531. The reversal of 2142787530 is 357872412.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2142787531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 911817 + ... + 914163.

It is an arithmetic number, because the mean of its divisors is an integer number (86609502).

Almost surely, 2^2142787530 is an apocalyptic number.

2142787530 is an abundant number, since it is smaller than the sum of its proper divisors (3400220598).

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

2142787530 is a wasteful number, since it uses less digits than its factorization.

2142787530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4711.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 2142787530 is about 46290.2530777268. The cubic root of 2142787530 is about 1289.2180285747.

The spelling of 2142787530 in words is "two billion, one hundred forty-two million, seven hundred eighty-seven thousand, five hundred thirty".