523126379 has 2 divisors, whose sum is σ = 523126380. Its totient is φ = 523126378.

The previous prime is 523126343. The next prime is 523126427. The reversal of 523126379 is 973621325.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523126379 is a prime.

It is a super-2 number, since 2×523126379² = 547322416811303282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (523126319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261563189 + 261563190.

It is an arithmetic number, because the mean of its divisors is an integer number (261563190).

Almost surely, 2^523126379 is an apocalyptic number.

523126379 is a deficient number, since it is larger than the sum of its proper divisors (1).

523126379 is an equidigital number, since it uses as much as digits as its factorization.

523126379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 38.

The square root of 523126379 is about 22871.9561690731. The cubic root of 523126379 is about 805.7535112511.

The spelling of 523126379 in words is "five hundred twenty-three million, one hundred twenty-six thousand, three hundred seventy-nine".