135190568 has 8 divisors (see below), whose sum is σ = 253482330. Its totient is φ = 67595280.

The previous prime is 135190537. The next prime is 135190591. The reversal of 135190568 is 865091531.

It can be written as a sum of positive squares in only one way, i.e., 112741924 + 22448644 = 10618^2 + 4738^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8449403 + ... + 8449418.

Almost surely, 2^135190568 is an apocalyptic number.

It is an amenable number.

135190568 is a deficient number, since it is larger than the sum of its proper divisors (118291762).

135190568 is a wasteful number, since it uses less digits than its factorization.

135190568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16898827 (or 16898823 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 135190568 is about 11627.1478875948. The cubic root of 135190568 is about 513.2340532501.

It can be divided in two parts, 1351 and 90568, that added together give a palindrome (91919).

The spelling of 135190568 in words is "one hundred thirty-five million, one hundred ninety thousand, five hundred sixty-eight".