138210410 has 16 divisors (see below), whose sum is σ = 267915816. Its totient is φ = 51031488.

The previous prime is 138210407. The next prime is 138210419. The reversal of 138210410 is 14012831.

138210410 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 127667401 + 10543009 = 11299^2 + 3247^2 .

It is not an unprimeable number, because it can be changed into a prime (138210419) 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, 531449 + ... + 531708.

Almost surely, 2^138210410 is an apocalyptic number.

138210410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138210410 is a deficient number, since it is larger than the sum of its proper divisors (129705406).

138210410 is a wasteful number, since it uses less digits than its factorization.

138210410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063177.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 138210410 is about 11756.2923577121. The cubic root of 138210410 is about 517.0274307746.

The spelling of 138210410 in words is "one hundred thirty-eight million, two hundred ten thousand, four hundred ten".