139103201 has 8 divisors (see below), whose sum is σ = 142664424. Its totient is φ = 135550080.

The previous prime is 139103191. The next prime is 139103203. The reversal of 139103201 is 102301931.

It can be written as a sum of positive squares in 4 ways, for example, as 429025 + 138674176 = 655^2 + 11776^2 .

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 139103201 - 2¹⁴ = 139086817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139103203) 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, 48335 + ... + 51131.

It is an arithmetic number, because the mean of its divisors is an integer number (17833053).

Almost surely, 2^139103201 is an apocalyptic number.

It is an amenable number.

139103201 is a deficient number, since it is larger than the sum of its proper divisors (3561223).

139103201 is a wasteful number, since it uses less digits than its factorization.

139103201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 139103201 is about 11794.2020077664. The cubic root of 139103201 is about 518.1383144606.

The spelling of 139103201 in words is "one hundred thirty-nine million, one hundred three thousand, two hundred one".