712122442 has 4 divisors (see below), whose sum is σ = 1068183666. Its totient is φ = 356061220.

The previous prime is 712122409. The next prime is 712122443. The reversal of 712122442 is 244221217.

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., 647142721 + 64979721 = 25439^2 + 8061^2 .

It is not an unprimeable number, because it can be changed into a prime (712122443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178030609 + ... + 178030612.

Almost surely, 2^712122442 is an apocalyptic number.

712122442 is a deficient number, since it is larger than the sum of its proper divisors (356061224).

712122442 is a wasteful number, since it uses less digits than its factorization.

712122442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356061223.

The product of its digits is 1792, while the sum is 25.

The square root of 712122442 is about 26685.6223835983. The cubic root of 712122442 is about 893.0002027297. Note that the first 3 decimals are identical.

Adding to 712122442 its reverse (244221217), we get a palindrome (956343659).

The spelling of 712122442 in words is "seven hundred twelve million, one hundred twenty-two thousand, four hundred forty-two".