2142912724 has 24 divisors (see below), whose sum is σ = 3898919808. Its totient is φ = 1029716160.

The previous prime is 2142912721. The next prime is 2142912749. The reversal of 2142912724 is 4272192412.

It is a super-2 number, since 2×2142912724² = 9184149885362200352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2142912724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142912721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86524 + ... + 108499.

It is an arithmetic number, because the mean of its divisors is an integer number (162454992).

Almost surely, 2^2142912724 is an apocalyptic number.

It is an amenable number.

2142912724 is a deficient number, since it is larger than the sum of its proper divisors (1756007084).

2142912724 is a wasteful number, since it uses less digits than its factorization.

2142912724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195135 (or 195133 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 2142912724 is about 46291.6053296923. The cubic root of 2142912724 is about 1289.2431359354.

The spelling of 2142912724 in words is "two billion, one hundred forty-two million, nine hundred twelve thousand, seven hundred twenty-four".