138412070 has 32 divisors (see below), whose sum is σ = 258940800. Its totient is φ = 53205376.

The previous prime is 138412061. The next prime is 138412123. The reversal of 138412070 is 70214831.

It is a super-2 number, since 2×138412070² = 38315802243369800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68312 + ... + 70308.

It is an arithmetic number, because the mean of its divisors is an integer number (8091900).

Almost surely, 2^138412070 is an apocalyptic number.

138412070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138412070 is a deficient number, since it is larger than the sum of its proper divisors (120528730).

138412070 is a wasteful number, since it uses less digits than its factorization.

138412070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 138412070 is about 11764.8659150880. The cubic root of 138412070 is about 517.2787699780.

The spelling of 138412070 in words is "one hundred thirty-eight million, four hundred twelve thousand, seventy".