135697628 has 36 divisors (see below), whose sum is σ = 262296216. Its totient is φ = 61380000.

The previous prime is 135697619. The next prime is 135697643. The reversal of 135697628 is 826796531.

It is a super-3 number, since 3×135697628³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120926 + ... + 122042.

It is an arithmetic number, because the mean of its divisors is an integer number (7286006).

Almost surely, 2^135697628 is an apocalyptic number.

It is an amenable number.

135697628 is a deficient number, since it is larger than the sum of its proper divisors (126598588).

135697628 is a wasteful number, since it uses less digits than its factorization.

135697628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 1381 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The square root of 135697628 is about 11648.9324832793. The cubic root of 135697628 is about 513.8749159409.

The spelling of 135697628 in words is "one hundred thirty-five million, six hundred ninety-seven thousand, six hundred twenty-eight".