136106421 has 8 divisors (see below), whose sum is σ = 197973024. Its totient is φ = 82488720.

The previous prime is 136106419. The next prime is 136106431. The reversal of 136106421 is 124601631.

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

It is not a de Polignac number, because 136106421 - 2¹ = 136106419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136106391 and 136106400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136106431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2062186 + ... + 2062251.

It is an arithmetic number, because the mean of its divisors is an integer number (24746628).

Almost surely, 2^136106421 is an apocalyptic number.

136106421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136106421 is a deficient number, since it is larger than the sum of its proper divisors (61866603).

136106421 is a wasteful number, since it uses less digits than its factorization.

136106421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4124451.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 136106421 is about 11666.4656601732. The cubic root of 136106421 is about 514.3904196093.

The spelling of 136106421 in words is "one hundred thirty-six million, one hundred six thousand, four hundred twenty-one".