136253428 has 6 divisors (see below), whose sum is σ = 238443506. Its totient is φ = 68126712.

The previous prime is 136253417. The next prime is 136253441. The reversal of 136253428 is 824352631.

It can be written as a sum of positive squares in only one way, i.e., 74442384 + 61811044 = 8628^2 + 7862^2 .

It is a junction number, because it is equal to n+sod(n) for n = 136253393 and 136253402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17031675 + ... + 17031682.

Almost surely, 2^136253428 is an apocalyptic number.

It is an amenable number.

136253428 is a deficient number, since it is larger than the sum of its proper divisors (102190078).

136253428 is a wasteful number, since it uses less digits than its factorization.

136253428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34063361 (or 34063359 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 136253428 is about 11672.7643683919. The cubic root of 136253428 is about 514.5755487240.

The spelling of 136253428 in words is "one hundred thirty-six million, two hundred fifty-three thousand, four hundred twenty-eight".