138970006 has 16 divisors (see below), whose sum is σ = 241251840. Its totient is φ = 58804200.

The previous prime is 138969967. The next prime is 138970021. The reversal of 138970006 is 600079831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61720 + ... + 63931.

It is an arithmetic number, because the mean of its divisors is an integer number (15078240).

Almost surely, 2^138970006 is an apocalyptic number.

138970006 is a deficient number, since it is larger than the sum of its proper divisors (102281834).

138970006 is a wasteful number, since it uses less digits than its factorization.

138970006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125739.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 138970006 is about 11788.5540249854. The cubic root of 138970006 is about 517.9728845941.

The spelling of 138970006 in words is "one hundred thirty-eight million, nine hundred seventy thousand, six".