136826497 has 4 divisors (see below), whose sum is σ = 137218900. Its totient is φ = 136434096.

The previous prime is 136826461. The next prime is 136826507. The reversal of 136826497 is 794628631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 794628631 = 1279 ⋅621289.

It can be written as a sum of positive squares in 2 ways, for example, as 64899136 + 71927361 = 8056^2 + 8481^2 .

It is a cyclic number.

It is not a de Polignac number, because 136826497 - 2¹⁵ = 136793729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136826597) 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, 195678 + ... + 196375.

It is an arithmetic number, because the mean of its divisors is an integer number (34304725).

Almost surely, 2^136826497 is an apocalyptic number.

It is an amenable number.

136826497 is a deficient number, since it is larger than the sum of its proper divisors (392403).

136826497 is an equidigital number, since it uses as much as digits as its factorization.

136826497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392402.

The product of its digits is 435456, while the sum is 46.

The square root of 136826497 is about 11697.2858817762. The cubic root of 136826497 is about 515.2959583316.

The spelling of 136826497 in words is "one hundred thirty-six million, eight hundred twenty-six thousand, four hundred ninety-seven".