135709445 has 16 divisors (see below), whose sum is σ = 169060608. Its totient is φ = 104504640.

The previous prime is 135709433. The next prime is 135709447. The reversal of 135709445 is 544907531.

It is not a de Polignac number, because 135709445 - 2⁴ = 135709429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135709399 and 135709408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135709447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9602 + ... + 19068.

It is an arithmetic number, because the mean of its divisors is an integer number (10566288).

Almost surely, 2^135709445 is an apocalyptic number.

It is an amenable number.

135709445 is a deficient number, since it is larger than the sum of its proper divisors (33351163).

135709445 is an equidigital number, since it uses as much as digits as its factorization.

135709445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9580.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 135709445 is about 11649.4396860965. The cubic root of 135709445 is about 513.8898321526.

The spelling of 135709445 in words is "one hundred thirty-five million, seven hundred nine thousand, four hundred forty-five".