148239331 has 4 divisors (see below), whose sum is σ = 148291000. Its totient is φ = 148187664.

The previous prime is 148239317. The next prime is 148239359. The reversal of 148239331 is 133932841.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 148239331 - 2¹¹ = 148237283 is a prime.

It is a super-2 number, since 2×148239331² = 43949798510655122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148239431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21261 + ... + 27358.

It is an arithmetic number, because the mean of its divisors is an integer number (37072750).

Almost surely, 2^148239331 is an apocalyptic number.

148239331 is a deficient number, since it is larger than the sum of its proper divisors (51669).

148239331 is an equidigital number, since it uses as much as digits as its factorization.

148239331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51668.

The product of its digits is 15552, while the sum is 34.

The square root of 148239331 is about 12175.3575306847. The cubic root of 148239331 is about 529.2422195414.

The spelling of 148239331 in words is "one hundred forty-eight million, two hundred thirty-nine thousand, three hundred thirty-one".