4156239 has 8 divisors (see below), whose sum is σ = 5582080. Its totient is φ = 2750616.

The previous prime is 4156219. The next prime is 4156249. The reversal of 4156239 is 9326514.

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

It is not a de Polignac number, because 4156239 - 2¹² = 4152143 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 (4156219) 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, 4567 + ... + 5400.

It is an arithmetic number, because the mean of its divisors is an integer number (697760).

Almost surely, 2^4156239 is an apocalyptic number.

4156239 is a deficient number, since it is larger than the sum of its proper divisors (1425841).

4156239 is a wasteful number, since it uses less digits than its factorization.

4156239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10109.

The product of its digits is 6480, while the sum is 30.

The square root of 4156239 is about 2038.6856059726. The cubic root of 4156239 is about 160.7805479428.

It can be divided in two parts, 41 and 56239, that added together give a triangular number (56280 = T₃₃₅).

The spelling of 4156239 in words is "four million, one hundred fifty-six thousand, two hundred thirty-nine".