136906242121 has 16 divisors (see below), whose sum is σ = 154410840576. Its totient is φ = 120257280000.

The previous prime is 136906242113. The next prime is 136906242131. The reversal of 136906242121 is 121242609631.

It is a happy number.

It is not a de Polignac number, because 136906242121 - 2³ = 136906242113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136906242131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94590 + ... + 531751.

It is an arithmetic number, because the mean of its divisors is an integer number (9650677536).

Almost surely, 2^136906242121 is an apocalyptic number.

136906242121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136906242121 is a deficient number, since it is larger than the sum of its proper divisors (17504598455).

136906242121 is a wasteful number, since it uses less digits than its factorization.

136906242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627024.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 136906242121 in words is "one hundred thirty-six billion, nine hundred six million, two hundred forty-two thousand, one hundred twenty-one".