654712123 has 8 divisors (see below), whose sum is σ = 705409488. Its totient is φ = 604062624.

The previous prime is 654712117. The next prime is 654712129. The reversal of 654712123 is 321217456.

654712123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (654712117) and next prime (654712129).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654712123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654712129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19536 + ... + 41122.

It is an arithmetic number, because the mean of its divisors is an integer number (88176186).

Almost surely, 2^654712123 is an apocalyptic number.

654712123 is a deficient number, since it is larger than the sum of its proper divisors (50697365).

654712123 is a wasteful number, since it uses less digits than its factorization.

654712123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23933.

The product of its digits is 10080, while the sum is 31.

The square root of 654712123 is about 25587.3430234560. The cubic root of 654712123 is about 868.3273110457.

Adding to 654712123 its reverse (321217456), we get a palindrome (975929579).

The spelling of 654712123 in words is "six hundred fifty-four million, seven hundred twelve thousand, one hundred twenty-three".