138525710 has 16 divisors (see below), whose sum is σ = 252504000. Its totient is φ = 54708576.

The previous prime is 138525679. The next prime is 138525719. The reversal of 138525710 is 17525831.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86885 + ... + 88464.

It is an arithmetic number, because the mean of its divisors is an integer number (15781500).

Almost surely, 2^138525710 is an apocalyptic number.

138525710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138525710 is a deficient number, since it is larger than the sum of its proper divisors (113978290).

138525710 is a wasteful number, since it uses less digits than its factorization.

138525710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175435.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 138525710 is about 11769.6945584837. The cubic root of 138525710 is about 517.4202978065.

The spelling of 138525710 in words is "one hundred thirty-eight million, five hundred twenty-five thousand, seven hundred ten".