2143142402 has 16 divisors (see below), whose sum is σ = 3272858232. Its totient is φ = 1052248320.

The previous prime is 2143142371. The next prime is 2143142423. The reversal of 2143142402 is 2042413412.

It can be written as a sum of positive squares in 4 ways, for example, as 253414561 + 1889727841 = 15919^2 + 43471^2 .

It is an unprimeable number.

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, 60458 + ... + 89114.

Almost surely, 2^2143142402 is an apocalyptic number.

2143142402 is a deficient number, since it is larger than the sum of its proper divisors (1129715830).

2143142402 is a wasteful number, since it uses less digits than its factorization.

2143142402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29333.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2143142402 is about 46294.0860369875. The cubic root of 2143142402 is about 1289.2891947729.

Adding to 2143142402 its reverse (2042413412), we get a palindrome (4185555814).

The spelling of 2143142402 in words is "two billion, one hundred forty-three million, one hundred forty-two thousand, four hundred two".