135757628 has 6 divisors (see below), whose sum is σ = 237575856. Its totient is φ = 67878812.

The previous prime is 135757627. The next prime is 135757639. The reversal of 135757628 is 826757531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135757621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16969700 + ... + 16969707.

It is an arithmetic number, because the mean of its divisors is an integer number (39595976).

Almost surely, 2^135757628 is an apocalyptic number.

It is an amenable number.

135757628 is a deficient number, since it is larger than the sum of its proper divisors (101818228).

135757628 is a wasteful number, since it uses less digits than its factorization.

135757628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33939411 (or 33939409 counting only the distinct ones).

The product of its digits is 352800, while the sum is 44.

The square root of 135757628 is about 11651.5075419449. The cubic root of 135757628 is about 513.9506430121.

It can be divided in two parts, 1357 and 57628, that added together give a palindrome (58985).

The spelling of 135757628 in words is "one hundred thirty-five million, seven hundred fifty-seven thousand, six hundred twenty-eight".