148605839 has 2 divisors, whose sum is σ = 148605840. Its totient is φ = 148605838.

The previous prime is 148605833. The next prime is 148605851. The reversal of 148605839 is 938506841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 148605839 - 2²⁴ = 131828623 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148605839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148605833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74302919 + 74302920.

It is an arithmetic number, because the mean of its divisors is an integer number (74302920).

Almost surely, 2^148605839 is an apocalyptic number.

148605839 is a deficient number, since it is larger than the sum of its proper divisors (1).

148605839 is an equidigital number, since it uses as much as digits as its factorization.

148605839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 148605839 is about 12190.3994602310. The cubic root of 148605839 is about 529.6780280106.

The spelling of 148605839 in words is "one hundred forty-eight million, six hundred five thousand, eight hundred thirty-nine".