148081139 has 2 divisors, whose sum is σ = 148081140. Its totient is φ = 148081138.

The previous prime is 148081127. The next prime is 148081159. The reversal of 148081139 is 931180841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148081139 - 2²⁰ = 147032563 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 148081099 and 148081108.

It is not a weakly prime, because it can be changed into another prime (148081159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74040569 + 74040570.

It is an arithmetic number, because the mean of its divisors is an integer number (74040570).

Almost surely, 2^148081139 is an apocalyptic number.

148081139 is a deficient number, since it is larger than the sum of its proper divisors (1).

148081139 is an equidigital number, since it uses as much as digits as its factorization.

148081139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 148081139 is about 12168.8593960157. The cubic root of 148081139 is about 529.0538941640.

The spelling of 148081139 in words is "one hundred forty-eight million, eighty-one thousand, one hundred thirty-nine".