135011537 has 2 divisors, whose sum is σ = 135011538. Its totient is φ = 135011536.

The previous prime is 135011533. The next prime is 135011543. The reversal of 135011537 is 735110531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114725521 + 20286016 = 10711^2 + 4504^2 .

It is a cyclic number.

It is not a de Polignac number, because 135011537 - 2² = 135011533 is a prime.

It is not a weakly prime, because it can be changed into another prime (135011531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67505768 + 67505769.

It is an arithmetic number, because the mean of its divisors is an integer number (67505769).

Almost surely, 2^135011537 is an apocalyptic number.

It is an amenable number.

135011537 is a deficient number, since it is larger than the sum of its proper divisors (1).

135011537 is an equidigital number, since it uses as much as digits as its factorization.

135011537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1575, while the sum is 26.

The square root of 135011537 is about 11619.4465014475. The cubic root of 135011537 is about 513.0073969145.

The spelling of 135011537 in words is "one hundred thirty-five million, eleven thousand, five hundred thirty-seven".