136721435 has 16 divisors (see below), whose sum is σ = 175539360. Its totient is φ = 101917440.

The previous prime is 136721413. The next prime is 136721447. The reversal of 136721435 is 534127631.

It is not a de Polignac number, because 136721435 - 2¹⁰ = 136720411 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6002 + ... + 17591.

It is an arithmetic number, because the mean of its divisors is an integer number (10971210).

Almost surely, 2^136721435 is an apocalyptic number.

136721435 is a deficient number, since it is larger than the sum of its proper divisors (38817925).

136721435 is a wasteful number, since it uses less digits than its factorization.

136721435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23678.

The product of its digits is 15120, while the sum is 32.

The square root of 136721435 is about 11692.7941485344. The cubic root of 136721435 is about 515.1640348429.

The spelling of 136721435 in words is "one hundred thirty-six million, seven hundred twenty-one thousand, four hundred thirty-five".