136721101 has 8 divisors (see below), whose sum is σ = 152788608. Its totient is φ = 121260000.

The previous prime is 136721087. The next prime is 136721119. The reversal of 136721101 is 101127631.

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

It is a cyclic number.

It is not a de Polignac number, because 136721101 - 2⁹ = 136720589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136721171) 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, 151125 + ... + 152026.

It is an arithmetic number, because the mean of its divisors is an integer number (19098576).

Almost surely, 2^136721101 is an apocalyptic number.

136721101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136721101 is a deficient number, since it is larger than the sum of its proper divisors (16067507).

136721101 is a wasteful number, since it uses less digits than its factorization.

136721101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303203.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 136721101 is about 11692.7798662251. The cubic root of 136721101 is about 515.1636153404.

Adding to 136721101 its reverse (101127631), we get a palindrome (237848732).

The spelling of 136721101 in words is "one hundred thirty-six million, seven hundred twenty-one thousand, one hundred one".