4139101921 has 8 divisors (see below), whose sum is σ = 4173212288. Its totient is φ = 4105080000.

The previous prime is 4139101913. The next prime is 4139101931. The reversal of 4139101921 is 1291019314.

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 4139101921 - 2³ = 4139101913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4139101931) 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, 73561 + ... + 117001.

It is an arithmetic number, because the mean of its divisors is an integer number (521651536).

Almost surely, 2^4139101921 is an apocalyptic number.

It is an amenable number.

4139101921 is a deficient number, since it is larger than the sum of its proper divisors (34110367).

4139101921 is a wasteful number, since it uses less digits than its factorization.

4139101921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44223.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 4139101921 is about 64335.8525318504. The cubic root of 4139101921 is about 1605.5926578812.

The spelling of 4139101921 in words is "four billion, one hundred thirty-nine million, one hundred one thousand, nine hundred twenty-one".