138496073 has 8 divisors (see below), whose sum is σ = 149341920. Its totient is φ = 128005920.

The previous prime is 138496067. The next prime is 138496103. The reversal of 138496073 is 370694831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138496073 - 2⁶ = 138496009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138496073.

It is not an unprimeable number, because it can be changed into a prime (138496013) 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, 88115 + ... + 89672.

It is an arithmetic number, because the mean of its divisors is an integer number (18667740).

Almost surely, 2^138496073 is an apocalyptic number.

It is an amenable number.

138496073 is a deficient number, since it is larger than the sum of its proper divisors (10845847).

138496073 is a wasteful number, since it uses less digits than its factorization.

138496073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177847.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 138496073 is about 11768.4354525145. The cubic root of 138496073 is about 517.3833952005.

The spelling of 138496073 in words is "one hundred thirty-eight million, four hundred ninety-six thousand, seventy-three".