148002139 has 2 divisors, whose sum is σ = 148002140. Its totient is φ = 148002138.

The previous prime is 148002137. The next prime is 148002203. The reversal of 148002139 is 931200841.

It is a happy number.

148002139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148002139 - 2¹ = 148002137 is a prime.

Together with 148002137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (148002131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74001069 + 74001070.

It is an arithmetic number, because the mean of its divisors is an integer number (74001070).

Almost surely, 2^148002139 is an apocalyptic number.

148002139 is a deficient number, since it is larger than the sum of its proper divisors (1).

148002139 is an equidigital number, since it uses as much as digits as its factorization.

148002139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 148002139 is about 12165.6129726373. The cubic root of 148002139 is about 528.9597955444.

It can be divided in two parts, 1480021 and 39, that added together give a triangular number (1480060 = T₁₇₂₀).

The spelling of 148002139 in words is "one hundred forty-eight million, two thousand, one hundred thirty-nine".