135488428 has 6 divisors (see below), whose sum is σ = 237104756. Its totient is φ = 67744212.

The previous prime is 135488407. The next prime is 135488467. The reversal of 135488428 is 824884531.

It is a happy number.

It is a super-2 number, since 2×135488428² = 36714228243822368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16936050 + ... + 16936057.

Almost surely, 2^135488428 is an apocalyptic number.

It is an amenable number.

135488428 is a deficient number, since it is larger than the sum of its proper divisors (101616328).

135488428 is a wasteful number, since it uses less digits than its factorization.

135488428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33872111 (or 33872109 counting only the distinct ones).

The product of its digits is 245760, while the sum is 43.

The square root of 135488428 is about 11639.9496562485. The cubic root of 135488428 is about 513.6107061542.

The spelling of 135488428 in words is "one hundred thirty-five million, four hundred eighty-eight thousand, four hundred twenty-eight".