712142642 has 4 divisors (see below), whose sum is σ = 1068213966. Its totient is φ = 356071320.

The previous prime is 712142623. The next prime is 712142657. The reversal of 712142642 is 246241217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 246241217 = 587 ⋅419491.

It can be written as a sum of positive squares in only one way, i.e., 396049801 + 316092841 = 19901^2 + 17779^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178035659 + ... + 178035662.

Almost surely, 2^712142642 is an apocalyptic number.

712142642 is a deficient number, since it is larger than the sum of its proper divisors (356071324).

712142642 is a wasteful number, since it uses less digits than its factorization.

712142642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356071323.

The product of its digits is 5376, while the sum is 29.

The square root of 712142642 is about 26686.0008618751. Note that the first 3 decimals coincide. The cubic root of 712142642 is about 893.0086462372.

Adding to 712142642 its reverse (246241217), we get a palindrome (958383859).

The spelling of 712142642 in words is "seven hundred twelve million, one hundred forty-two thousand, six hundred forty-two".