139365073 has 8 divisors (see below), whose sum is σ = 146160000. Its totient is φ = 132631488.

The previous prime is 139365059. The next prime is 139365131. The reversal of 139365073 is 370563931.

It is a happy number.

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 139365073 - 2¹⁷ = 139234001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139365013) 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, 10648 + ... + 19801.

It is an arithmetic number, because the mean of its divisors is an integer number (18270000).

Almost surely, 2^139365073 is an apocalyptic number.

It is an amenable number.

139365073 is a deficient number, since it is larger than the sum of its proper divisors (6794927).

139365073 is a wasteful number, since it uses less digits than its factorization.

139365073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30671.

The product of its (nonzero) digits is 51030, while the sum is 37.

The square root of 139365073 is about 11805.2985138030. The cubic root of 139365073 is about 518.4632551243.

It can be divided in two parts, 1393 and 65073, that added together give a palindrome (66466).

The spelling of 139365073 in words is "one hundred thirty-nine million, three hundred sixty-five thousand, seventy-three".