1042136523 has 10 divisors (see below), whose sum is σ = 1556771964. Its totient is φ = 694757628.

The previous prime is 1042136521. The next prime is 1042136527. The reversal of 1042136523 is 3256312401.

1042136523 is a `hidden beast` number, since 1 + 0 + 4 + 2 + 1 + 3 + 652 + 3 = 666.

It is not a de Polignac number, because 1042136523 - 2¹ = 1042136521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1042136521) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6432861 + ... + 6433022.

Almost surely, 2^1042136523 is an apocalyptic number.

1042136523 is a deficient number, since it is larger than the sum of its proper divisors (514635441).

1042136523 is an equidigital number, since it uses as much as digits as its factorization.

1042136523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12865895 (or 12865886 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1042136523 is about 32282.1393807783. The cubic root of 1042136523 is about 1013.8527236121.

Adding to 1042136523 its reverse (3256312401), we get a palindrome (4298448924).

The spelling of 1042136523 in words is "one billion, forty-two million, one hundred thirty-six thousand, five hundred twenty-three".