38143243 has 4 divisors (see below), whose sum is σ = 39073608. Its totient is φ = 37212880.

The previous prime is 38143219. The next prime is 38143267. The reversal of 38143243 is 34234183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34234183 = 1601 ⋅21383.

It is an interprime number because it is at equal distance from previous prime (38143219) and next prime (38143267).

It is a cyclic number.

It is not a de Polignac number, because 38143243 - 2²⁵ = 4588811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38143283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465121 + ... + 465202.

It is an arithmetic number, because the mean of its divisors is an integer number (9768402).

Almost surely, 2^38143243 is an apocalyptic number.

38143243 is a deficient number, since it is larger than the sum of its proper divisors (930365).

38143243 is an equidigital number, since it uses as much as digits as its factorization.

38143243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930364.

The product of its digits is 6912, while the sum is 28.

The square root of 38143243 is about 6176.0216158948. The cubic root of 38143243 is about 336.6194490959.

The spelling of 38143243 in words is "thirty-eight million, one hundred forty-three thousand, two hundred forty-three".