523126442 has 8 divisors (see below), whose sum is σ = 786141732. Its totient is φ = 261079200.

The previous prime is 523126441. The next prime is 523126481. The reversal of 523126442 is 244621325.

It can be written as a sum of positive squares in 2 ways, for example, as 509811241 + 13315201 = 22579^2 + 3649^2 .

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

It is a super-2 number, since 2×523126442² = 547322548639158728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (523126441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240659 + ... + 242822.

Almost surely, 2^523126442 is an apocalyptic number.

523126442 is a deficient number, since it is larger than the sum of its proper divisors (263015290).

523126442 is a wasteful number, since it uses less digits than its factorization.

523126442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484024.

The product of its digits is 11520, while the sum is 29.

The square root of 523126442 is about 22871.9575463055. The cubic root of 523126442 is about 805.7535435966.

Adding to 523126442 its reverse (244621325), we get a palindrome (767747767).

The spelling of 523126442 in words is "five hundred twenty-three million, one hundred twenty-six thousand, four hundred forty-two".