139777201 has 8 divisors (see below), whose sum is σ = 142936704. Its totient is φ = 136625520.

The previous prime is 139777181. The next prime is 139777217. The reversal of 139777201 is 102777931.

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 139777201 - 2⁷ = 139777073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139777501) 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, 48466 + ... + 51268.

It is an arithmetic number, because the mean of its divisors is an integer number (17867088).

Almost surely, 2^139777201 is an apocalyptic number.

It is an amenable number.

139777201 is a deficient number, since it is larger than the sum of its proper divisors (3159503).

139777201 is a wasteful number, since it uses less digits than its factorization.

139777201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911.

The product of its (nonzero) digits is 18522, while the sum is 37.

The square root of 139777201 is about 11822.7408412770. The cubic root of 139777201 is about 518.9738157250.

The spelling of 139777201 in words is "one hundred thirty-nine million, seven hundred seventy-seven thousand, two hundred one".