4139457 has 8 divisors (see below), whose sum is σ = 6307776. Its totient is φ = 2365392.

The previous prime is 4139423. The next prime is 4139477. The reversal of 4139457 is 7549314.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4139457 - 2⁷ = 4139329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4139417) 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, 98538 + ... + 98579.

It is an arithmetic number, because the mean of its divisors is an integer number (788472).

Almost surely, 2^4139457 is an apocalyptic number.

It is an amenable number.

4139457 is a deficient number, since it is larger than the sum of its proper divisors (2168319).

4139457 is a wasteful number, since it uses less digits than its factorization.

4139457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197127.

The product of its digits is 15120, while the sum is 33.

The square root of 4139457 is about 2034.5655555917. The cubic root of 4139457 is about 160.5638569285.

It can be divided in two parts, 413 and 9457, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 4139457 in words is "four million, one hundred thirty-nine thousand, four hundred fifty-seven".