2142152042 has 4 divisors (see below), whose sum is σ = 3213228066. Its totient is φ = 1071076020.

The previous prime is 2142152029. The next prime is 2142152057. The reversal of 2142152042 is 2402512412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1863562561 + 278589481 = 43169^2 + 16691^2 .

It is a super-3 number, since 3×2142152042³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2142151999 and 2142152017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535538009 + ... + 535538012.

Almost surely, 2^2142152042 is an apocalyptic number.

2142152042 is a deficient number, since it is larger than the sum of its proper divisors (1071076024).

2142152042 is a wasteful number, since it uses less digits than its factorization.

2142152042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071076023.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2142152042 is about 46283.3884023199. The cubic root of 2142152042 is about 1289.0905678753.

Adding to 2142152042 its reverse (2402512412), we get a palindrome (4544664454).

The spelling of 2142152042 in words is "two billion, one hundred forty-two million, one hundred fifty-two thousand, forty-two".