712149442 has 8 divisors (see below), whose sum is σ = 1068858000. Its totient is φ = 355863444.

The previous prime is 712149401. The next prime is 712149443. The reversal of 712149442 is 244941217.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×712149442² = 1014313655481822728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 712149398 and 712149407.

It is not an unprimeable number, because it can be changed into a prime (712149443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101392 + ... + 108187.

It is an arithmetic number, because the mean of its divisors is an integer number (133607250).

Almost surely, 2^712149442 is an apocalyptic number.

712149442 is a deficient number, since it is larger than the sum of its proper divisors (356708558).

712149442 is a wasteful number, since it uses less digits than its factorization.

712149442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211280.

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

The square root of 712149442 is about 26686.1282691963. The cubic root of 712149442 is about 893.0114885702.

Subtracting from 712149442 its reverse (244941217), we obtain a square (467208225 = 21615²).

It can be divided in two parts, 71214 and 9442, that added together give a square (80656 = 284²).

The spelling of 712149442 in words is "seven hundred twelve million, one hundred forty-nine thousand, four hundred forty-two".