138099670 has 16 divisors (see below), whose sum is σ = 263202048. Its totient is φ = 51990400.

The previous prime is 138099667. The next prime is 138099671. The reversal of 138099670 is 76990831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138099671) 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, 406006 + ... + 406345.

It is an arithmetic number, because the mean of its divisors is an integer number (16450128).

Almost surely, 2^138099670 is an apocalyptic number.

138099670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138099670 is a deficient number, since it is larger than the sum of its proper divisors (125102378).

138099670 is a wasteful number, since it uses less digits than its factorization.

138099670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812375.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 138099670 is about 11751.5815956832. The cubic root of 138099670 is about 516.8893058283.

The spelling of 138099670 in words is "one hundred thirty-eight million, ninety-nine thousand, six hundred seventy".