136726501 has 4 divisors (see below), whose sum is σ = 137139904. Its totient is φ = 136313100.

The previous prime is 136726493. The next prime is 136726531. The reversal of 136726501 is 105627631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136726501 - 2³ = 136726493 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 (136726531) by changing a digit.

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, 206205 + ... + 206866.

It is an arithmetic number, because the mean of its divisors is an integer number (34284976).

Almost surely, 2^136726501 is an apocalyptic number.

It is an amenable number.

136726501 is a deficient number, since it is larger than the sum of its proper divisors (413403).

136726501 is an equidigital number, since it uses as much as digits as its factorization.

136726501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413402.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 136726501 is about 11693.0107756728. The cubic root of 136726501 is about 515.1703976315.

The spelling of 136726501 in words is "one hundred thirty-six million, seven hundred twenty-six thousand, five hundred one".