148404139 has 6 divisors (see below), whose sum is σ = 160698156. Its totient is φ = 136988280.

The previous prime is 148404121. The next prime is 148404167. The reversal of 148404139 is 931404841.

It is not a de Polignac number, because 148404139 - 2⁹ = 148403627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148407139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 438897 + ... + 439234.

It is an arithmetic number, because the mean of its divisors is an integer number (26783026).

Almost surely, 2^148404139 is an apocalyptic number.

148404139 is a deficient number, since it is larger than the sum of its proper divisors (12294017).

148404139 is an equidigital number, since it uses as much as digits as its factorization.

148404139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878157 (or 878144 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 148404139 is about 12182.1237475245. The cubic root of 148404139 is about 529.4382787271.

The spelling of 148404139 in words is "one hundred forty-eight million, four hundred four thousand, one hundred thirty-nine".