148473239 has 4 divisors (see below), whose sum is σ = 156287640. Its totient is φ = 140658840.

The previous prime is 148473233. The next prime is 148473289. The reversal of 148473239 is 932374841.

148473239 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: 932374841 = 1223 ⋅762367.

It is a cyclic number.

It is not a de Polignac number, because 148473239 - 2⁸ = 148472983 is a prime.

It is a super-2 number, since 2×148473239² = 44088605398302242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 148473196 and 148473205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148473233) 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, 3907172 + ... + 3907209.

It is an arithmetic number, because the mean of its divisors is an integer number (39071910).

Almost surely, 2^148473239 is an apocalyptic number.

148473239 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

148473239 is a deficient number, since it is larger than the sum of its proper divisors (7814401).

148473239 is an equidigital number, since it uses as much as digits as its factorization.

148473239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7814400.

The product of its digits is 145152, while the sum is 41.

The square root of 148473239 is about 12184.9595403514. The cubic root of 148473239 is about 529.5204384041.

The spelling of 148473239 in words is "one hundred forty-eight million, four hundred seventy-three thousand, two hundred thirty-nine".