473523139 has 2 divisors, whose sum is σ = 473523140. Its totient is φ = 473523138.

The previous prime is 473523137. The next prime is 473523157. The reversal of 473523139 is 931325374.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 473523139 - 2¹ = 473523137 is a prime.

Together with 473523137, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 473523098 and 473523107.

It is not a weakly prime, because it can be changed into another prime (473523133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236761569 + 236761570.

It is an arithmetic number, because the mean of its divisors is an integer number (236761570).

Almost surely, 2^473523139 is an apocalyptic number.

473523139 is a deficient number, since it is larger than the sum of its proper divisors (1).

473523139 is an equidigital number, since it uses as much as digits as its factorization.

473523139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 37.

The square root of 473523139 is about 21760.5868257269. The cubic root of 473523139 is about 779.4358944533.

The spelling of 473523139 in words is "four hundred seventy-three million, five hundred twenty-three thousand, one hundred thirty-nine".