135742036 has 18 divisors (see below), whose sum is σ = 239413902. Its totient is φ = 67340160.

The previous prime is 135742031. The next prime is 135742037. The reversal of 135742036 is 630247531.

It can be written as a sum of positive squares in 3 ways, for example, as 19749136 + 115992900 = 4444^2 + 10770^2 .

It is a junction number, because it is equal to n+sod(n) for n = 135741989 and 135742007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135742031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 313276 + ... + 313708.

Almost surely, 2^135742036 is an apocalyptic number.

It is an amenable number.

135742036 is a deficient number, since it is larger than the sum of its proper divisors (103671866).

135742036 is an equidigital number, since it uses as much as digits as its factorization.

135742036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 135742036 is about 11650.8384247658. The cubic root of 135742036 is about 513.9309662166.

Adding to 135742036 its reverse (630247531), we get a palindrome (765989567).

The spelling of 135742036 in words is "one hundred thirty-five million, seven hundred forty-two thousand, thirty-six".