4138915541 has 8 divisors (see below), whose sum is σ = 4187894400. Its totient is φ = 4089991840.

The previous prime is 4138915537. The next prime is 4138915567. The reversal of 4138915541 is 1455198314.

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 4138915541 - 2² = 4138915537 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138911541) 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, 148340 + ... + 174018.

It is an arithmetic number, because the mean of its divisors is an integer number (523486800).

Almost surely, 2^4138915541 is an apocalyptic number.

It is an amenable number.

4138915541 is a deficient number, since it is larger than the sum of its proper divisors (48978859).

4138915541 is a wasteful number, since it uses less digits than its factorization.

4138915541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27579.

The product of its digits is 86400, while the sum is 41.

The square root of 4138915541 is about 64334.4040230420. The cubic root of 4138915541 is about 1605.5685580598.

The spelling of 4138915541 in words is "four billion, one hundred thirty-eight million, nine hundred fifteen thousand, five hundred forty-one".