712147 has 8 divisors (see below), whose sum is σ = 761616. Its totient is φ = 663552.

The previous prime is 712133. The next prime is 712157. The reversal of 712147 is 741217.

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

It is a 13-Lehmer number, since φ(712147) divides (712147-1)¹³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-712147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (712157) 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 7 ways as a sum of consecutive naturals, for example, 2643 + ... + 2899.

It is an arithmetic number, because the mean of its divisors is an integer number (95202).

2⁷¹²¹⁴⁷ is an apocalyptic number.

712147 is a deficient number, since it is larger than the sum of its proper divisors (49469).

712147 is a wasteful number, since it uses less digits than its factorization.

712147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437.

The product of its digits is 392, while the sum is 22.

The square root of 712147 is about 843.8880257475. Note that the first 3 decimals coincide. The cubic root of 712147 is about 89.3010467840.

The spelling of 712147 in words is "seven hundred twelve thousand, one hundred forty-seven", and thus it is an iban number.