138525711 has 8 divisors (see below), whose sum is σ = 192731520. Its totient is φ = 88335192.

The previous prime is 138525679. The next prime is 138525719. The reversal of 138525711 is 117525831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138525711 - 2⁵ = 138525679 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138525719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1003741 + ... + 1003878.

It is an arithmetic number, because the mean of its divisors is an integer number (24091440).

Almost surely, 2^138525711 is an apocalyptic number.

138525711 is a deficient number, since it is larger than the sum of its proper divisors (54205809).

138525711 is a wasteful number, since it uses less digits than its factorization.

138525711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007645.

The product of its digits is 8400, while the sum is 33.

The square root of 138525711 is about 11769.6946009657. The cubic root of 138525711 is about 517.4202990516.

The spelling of 138525711 in words is "one hundred thirty-eight million, five hundred twenty-five thousand, seven hundred eleven".