136406427 has 8 divisors (see below), whose sum is σ = 182032464. Its totient is φ = 90859008.

The previous prime is 136406423. The next prime is 136406429. The reversal of 136406427 is 724604631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136406427 - 2² = 136406423 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (136406423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15478 + ... + 22635.

It is an arithmetic number, because the mean of its divisors is an integer number (22754058).

Almost surely, 2^136406427 is an apocalyptic number.

136406427 is a deficient number, since it is larger than the sum of its proper divisors (45626037).

136406427 is a wasteful number, since it uses less digits than its factorization.

136406427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39309.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 136406427 is about 11679.3162042989. The cubic root of 136406427 is about 514.7680823369.

The spelling of 136406427 in words is "one hundred thirty-six million, four hundred six thousand, four hundred twenty-seven".