136064537 has 4 divisors (see below), whose sum is σ = 155502336. Its totient is φ = 116626740.

The previous prime is 136064531. The next prime is 136064603. The reversal of 136064537 is 735460631.

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, and also an emirpimes, since its reverse is a distinct semiprime: 735460631 = 499 ⋅1473869.

It is a cyclic number.

It is not a de Polignac number, because 136064537 - 2¹⁸ = 135802393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136064497 and 136064506.

It is not an unprimeable number, because it can be changed into a prime (136064531) 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, 9718889 + ... + 9718902.

It is an arithmetic number, because the mean of its divisors is an integer number (38875584).

Almost surely, 2^136064537 is an apocalyptic number.

It is an amenable number.

136064537 is a deficient number, since it is larger than the sum of its proper divisors (19437799).

136064537 is an equidigital number, since it uses as much as digits as its factorization.

136064537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19437798.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 136064537 is about 11664.6704625549. The cubic root of 136064537 is about 514.3376497779.

The spelling of 136064537 in words is "one hundred thirty-six million, sixty-four thousand, five hundred thirty-seven".