136406425 has 12 divisors (see below), whose sum is σ = 169431616. Its totient is φ = 108939600.

The previous prime is 136406423. The next prime is 136406429. The reversal of 136406425 is 524604631.

It is not a de Polignac number, because 136406425 - 2¹ = 136406423 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11452 + ... + 20098.

Almost surely, 2^136406425 is an apocalyptic number.

It is an amenable number.

136406425 is a deficient number, since it is larger than the sum of its proper divisors (33025191).

136406425 is an equidigital number, since it uses as much as digits as its factorization.

136406425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9288 (or 9283 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 136406425 is about 11679.3161186775. The cubic root of 136406425 is about 514.7680798210.

The spelling of 136406425 in words is "one hundred thirty-six million, four hundred six thousand, four hundred twenty-five".