136706511 has 4 divisors (see below), whose sum is σ = 182275352. Its totient is φ = 91137672.

The previous prime is 136706509. The next prime is 136706513. The reversal of 136706511 is 115607631.

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

It is an interprime number because it is at equal distance from previous prime (136706509) and next prime (136706513).

It is not a de Polignac number, because 136706511 - 2¹ = 136706509 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 (136706513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22784416 + ... + 22784421.

It is an arithmetic number, because the mean of its divisors is an integer number (45568838).

Almost surely, 2^136706511 is an apocalyptic number.

136706511 is a deficient number, since it is larger than the sum of its proper divisors (45568841).

136706511 is an equidigital number, since it uses as much as digits as its factorization.

136706511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45568840.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 136706511 is about 11692.1559603009. The cubic root of 136706511 is about 515.1452897017.

The spelling of 136706511 in words is "one hundred thirty-six million, seven hundred six thousand, five hundred eleven".