146339939 has 4 divisors (see below), whose sum is σ = 146952480. Its totient is φ = 145727400.

The previous prime is 146339917. The next prime is 146339951. The reversal of 146339939 is 939933641.

146339939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939933641 = 53 ⋅17734597.

It is a cyclic number.

It is not a de Polignac number, because 146339939 - 2¹² = 146335843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146339893 and 146339902.

It is not an unprimeable number, because it can be changed into a prime (146339909) 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, 305912 + ... + 306389.

It is an arithmetic number, because the mean of its divisors is an integer number (36738120).

Almost surely, 2^146339939 is an apocalyptic number.

146339939 is a deficient number, since it is larger than the sum of its proper divisors (612541).

146339939 is an equidigital number, since it uses as much as digits as its factorization.

146339939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612540.

The product of its digits is 472392, while the sum is 47.

The square root of 146339939 is about 12097.1045709294. The cubic root of 146339939 is about 526.9721008242.

The spelling of 146339939 in words is "one hundred forty-six million, three hundred thirty-nine thousand, nine hundred thirty-nine".