672572123 has 2 divisors, whose sum is σ = 672572124. Its totient is φ = 672572122.

The previous prime is 672572119. The next prime is 672572149. The reversal of 672572123 is 321275276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 672572123 - 2² = 672572119 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (672572113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336286061 + 336286062.

It is an arithmetic number, because the mean of its divisors is an integer number (336286062).

Almost surely, 2^672572123 is an apocalyptic number.

672572123 is a deficient number, since it is larger than the sum of its proper divisors (1).

672572123 is an equidigital number, since it uses as much as digits as its factorization.

672572123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 35.

The square root of 672572123 is about 25933.9955078272. The cubic root of 672572123 is about 876.1523312406.

The spelling of 672572123 in words is "six hundred seventy-two million, five hundred seventy-two thousand, one hundred twenty-three".