4031138641 has 8 divisors (see below), whose sum is σ = 4142284544. Its totient is φ = 3920108400.

The previous prime is 4031138633. The next prime is 4031138647. The reversal of 4031138641 is 1468311304.

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 4031138641 - 2³ = 4031138633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4031138647) 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, 44266 + ... + 100108.

It is an arithmetic number, because the mean of its divisors is an integer number (517785568).

Almost surely, 2^4031138641 is an apocalyptic number.

It is an amenable number.

4031138641 is a deficient number, since it is larger than the sum of its proper divisors (111145903).

4031138641 is a wasteful number, since it uses less digits than its factorization.

4031138641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57831.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 4031138641 is about 63491.2485386766. The cubic root of 4031138641 is about 1591.5095352474.

Adding to 4031138641 its reverse (1468311304), we get a palindrome (5499449945).

The spelling of 4031138641 in words is "four billion, thirty-one million, one hundred thirty-eight thousand, six hundred forty-one".