139973398 has 8 divisors (see below), whose sum is σ = 210036960. Its totient is φ = 69961080.

The previous prime is 139973389. The next prime is 139973419. The reversal of 139973398 is 893379931.

139973398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5038 + ... + 17473.

It is an arithmetic number, because the mean of its divisors is an integer number (26254620).

Almost surely, 2^139973398 is an apocalyptic number.

139973398 is a deficient number, since it is larger than the sum of its proper divisors (70063562).

139973398 is a wasteful number, since it uses less digits than its factorization.

139973398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25622.

The product of its digits is 1102248, while the sum is 52.

The square root of 139973398 is about 11831.0353731193. The cubic root of 139973398 is about 519.2165198332.

The spelling of 139973398 in words is "one hundred thirty-nine million, nine hundred seventy-three thousand, three hundred ninety-eight".