136428611 has 4 divisors (see below), whose sum is σ = 148831224. Its totient is φ = 124026000.

The previous prime is 136428599. The next prime is 136428641. The reversal of 136428611 is 116824631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136428611 - 2¹⁰ = 136427587 is a prime.

It is a super-2 number, since 2×136428611² = 37225531798778642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136428641) 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 3 ways as a sum of consecutive naturals, for example, 6201290 + ... + 6201311.

It is an arithmetic number, because the mean of its divisors is an integer number (37207806).

Almost surely, 2^136428611 is an apocalyptic number.

136428611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136428611 is a deficient number, since it is larger than the sum of its proper divisors (12402613).

136428611 is a wasteful number, since it uses less digits than its factorization.

136428611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12402612.

The product of its digits is 6912, while the sum is 32.

The square root of 136428611 is about 11680.2658788231. The cubic root of 136428611 is about 514.7959866822.

The spelling of 136428611 in words is "one hundred thirty-six million, four hundred twenty-eight thousand, six hundred eleven".