135701537 has 4 divisors (see below), whose sum is σ = 136566036. Its totient is φ = 134837040.

The previous prime is 135701509. The next prime is 135701543. The reversal of 135701537 is 735107531.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28558336 + 107143201 = 5344^2 + 10351^2 .

It is a cyclic number.

It is not a de Polignac number, because 135701537 - 2⁶ = 135701473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135781537) 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, 432014 + ... + 432327.

It is an arithmetic number, because the mean of its divisors is an integer number (34141509).

Almost surely, 2^135701537 is an apocalyptic number.

It is an amenable number.

135701537 is a deficient number, since it is larger than the sum of its proper divisors (864499).

135701537 is an equidigital number, since it uses as much as digits as its factorization.

135701537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864498.

The product of its (nonzero) digits is 11025, while the sum is 32.

The square root of 135701537 is about 11649.1002656858. The cubic root of 135701537 is about 513.8798502393.

The spelling of 135701537 in words is "one hundred thirty-five million, seven hundred one thousand, five hundred thirty-seven".