139043223905 has 16 divisors (see below), whose sum is σ = 167108313600. Its totient is φ = 111063757440.

The previous prime is 139043223877. The next prime is 139043223971. The reversal of 139043223905 is 509322340931.

It is a happy number.

It is not a de Polignac number, because 139043223905 - 2⁶ = 139043223841 is a prime.

It is a super-2 number, since 2×139043223905² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9281261 + ... + 9296229.

It is an arithmetic number, because the mean of its divisors is an integer number (10444269600).

Almost surely, 2^139043223905 is an apocalyptic number.

It is an amenable number.

139043223905 is a deficient number, since it is larger than the sum of its proper divisors (28065089695).

139043223905 is a wasteful number, since it uses less digits than its factorization.

139043223905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17704.

The product of its (nonzero) digits is 174960, while the sum is 41.

The spelling of 139043223905 in words is "one hundred thirty-nine billion, forty-three million, two hundred twenty-three thousand, nine hundred five".