136208628 has 30 divisors (see below), whose sum is σ = 356077106. Its totient is φ = 45402768.

The previous prime is 136208627. The next prime is 136208659. The reversal of 136208628 is 826802631.

136208628 is a `hidden beast` number, since 1 + 3 + 6 + 20 + 8 + 628 = 666.

It can be written as a sum of positive squares in only one way, i.e., 80676324 + 55532304 = 8982^2 + 7452^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 136208592 and 136208601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136208627) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 209875 + ... + 210522.

Almost surely, 2^136208628 is an apocalyptic number.

136208628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

136208628 is an abundant number, since it is smaller than the sum of its proper divisors (219868478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136208628 is a wasteful number, since it uses less digits than its factorization.

136208628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420413 (or 420402 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 136208628 is about 11670.8452136081. The cubic root of 136208628 is about 514.5191452217.

The spelling of 136208628 in words is "one hundred thirty-six million, two hundred eight thousand, six hundred twenty-eight".