136021415 has 4 divisors (see below), whose sum is σ = 163225704. Its totient is φ = 108817128.

The previous prime is 136021367. The next prime is 136021453. The reversal of 136021415 is 514120631.

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 136021415 - 2⁸ = 136021159 is a prime.

It is a super-3 number, since 3×136021415³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13602137 + ... + 13602146.

It is an arithmetic number, because the mean of its divisors is an integer number (40806426).

Almost surely, 2^136021415 is an apocalyptic number.

136021415 is a deficient number, since it is larger than the sum of its proper divisors (27204289).

136021415 is an equidigital number, since it uses as much as digits as its factorization.

136021415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27204288.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 136021415 is about 11662.8219140995. The cubic root of 136021415 is about 514.2833088696.

The spelling of 136021415 in words is "one hundred thirty-six million, twenty-one thousand, four hundred fifteen".