138166070 has 32 divisors (see below), whose sum is σ = 293400576. Its totient is φ = 45842400.

The previous prime is 138166069. The next prime is 138166073. The reversal of 138166070 is 70661831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138166073) 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, 29666 + ... + 34005.

It is an arithmetic number, because the mean of its divisors is an integer number (9168768).

Almost surely, 2^138166070 is an apocalyptic number.

138166070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138166070 is an abundant number, since it is smaller than the sum of its proper divisors (155234506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138166070 is a wasteful number, since it uses less digits than its factorization.

138166070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63716.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 138166070 is about 11754.4064078115. The cubic root of 138166070 is about 516.9721347751.

The spelling of 138166070 in words is "one hundred thirty-eight million, one hundred sixty-six thousand, seventy".