4138551 has 12 divisors (see below), whose sum is σ = 6238128. Its totient is φ = 2638944.

The previous prime is 4138543. The next prime is 4138567. The reversal of 4138551 is 1558314.

It is not a de Polignac number, because 4138551 - 2³ = 4138543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4138591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9790 + ... + 10203.

It is an arithmetic number, because the mean of its divisors is an integer number (519844).

Almost surely, 2^4138551 is an apocalyptic number.

4138551 is a deficient number, since it is larger than the sum of its proper divisors (2099577).

4138551 is a wasteful number, since it uses less digits than its factorization.

4138551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20022 (or 20019 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 4138551 is about 2034.3428914517. The cubic root of 4138551 is about 160.5521419081.

The spelling of 4138551 in words is "four million, one hundred thirty-eight thousand, five hundred fifty-one".