136147537 has 2 divisors, whose sum is σ = 136147538. Its totient is φ = 136147536.

The previous prime is 136147523. The next prime is 136147601. The reversal of 136147537 is 735741631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106998336 + 29149201 = 10344^2 + 5399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136147537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136147496 and 136147505.

It is not a weakly prime, because it can be changed into another prime (136147507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68073768 + 68073769.

It is an arithmetic number, because the mean of its divisors is an integer number (68073769).

Almost surely, 2^136147537 is an apocalyptic number.

It is an amenable number.

136147537 is a deficient number, since it is larger than the sum of its proper divisors (1).

136147537 is an equidigital number, since it uses as much as digits as its factorization.

136147537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 37.

The square root of 136147537 is about 11668.2276717589. The cubic root of 136147537 is about 514.4422113054.

The spelling of 136147537 in words is "one hundred thirty-six million, one hundred forty-seven thousand, five hundred thirty-seven".