135798542 has 24 divisors (see below), whose sum is σ = 226995888. Its totient is φ = 60873120.

The previous prime is 135798521. The next prime is 135798581. The reversal of 135798542 is 245897531.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 135798493 and 135798502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13823 + ... + 21509.

It is an arithmetic number, because the mean of its divisors is an integer number (9458162).

Almost surely, 2^135798542 is an apocalyptic number.

135798542 is a deficient number, since it is larger than the sum of its proper divisors (91197346).

135798542 is a wasteful number, since it uses less digits than its factorization.

135798542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7784 (or 7773 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 135798542 is about 11653.2631481487. The cubic root of 135798542 is about 514.0022685078.

It can be divided in two parts, 1357 and 98542, that added together give a palindrome (99899).

The spelling of 135798542 in words is "one hundred thirty-five million, seven hundred ninety-eight thousand, five hundred forty-two".