135896739 has 16 divisors (see below), whose sum is σ = 199117440. Its totient is φ = 81757760.

The previous prime is 135896729. The next prime is 135896779. The reversal of 135896739 is 937698531.

It is a cyclic number.

It is not a de Polignac number, because 135896739 - 2⁴ = 135896723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135896691 and 135896700.

It is not an unprimeable number, because it can be changed into a prime (135896729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10509 + ... + 19550.

It is an arithmetic number, because the mean of its divisors is an integer number (12444840).

Almost surely, 2^135896739 is an apocalyptic number.

135896739 is a deficient number, since it is larger than the sum of its proper divisors (63220701).

135896739 is a wasteful number, since it uses less digits than its factorization.

135896739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30210.

The product of its digits is 1224720, while the sum is 51.

The square root of 135896739 is about 11657.4756701440. The cubic root of 135896739 is about 514.1261316926.

The spelling of 135896739 in words is "one hundred thirty-five million, eight hundred ninety-six thousand, seven hundred thirty-nine".