136537 has 2 divisors, whose sum is σ = 136538. Its totient is φ = 136536.
The previous prime is 136531. The next prime is 136541. The reversal of 136537 is 735631.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 126736 + 9801 = 356^2 + 99^2 .
It is a cyclic number.
It is not a de Polignac number, because 136537 - 211 = 134489 is a prime.
136537 is a lucky number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 136537.
It is not a weakly prime, because it can be changed into another prime (136531) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68268 + 68269.
It is an arithmetic number, because the mean of its divisors is an integer number (68269).
2136537 is an apocalyptic number.
It is an amenable number.
136537 is a deficient number, since it is larger than the sum of its proper divisors (1).
136537 is an equidigital number, since it uses as much as digits as its factorization.
136537 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1890, while the sum is 25.
The square root of 136537 is about 369.5091338519. The cubic root of 136537 is about 51.4932281290.
It can be divided in two parts, 1365 and 37, that multiplied together give a palindrome (50505).
The spelling of 136537 in words is "one hundred thirty-six thousand, five hundred thirty-seven".
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