148764439 has 2 divisors, whose sum is σ = 148764440. Its totient is φ = 148764438.

The previous prime is 148764419. The next prime is 148764449. The reversal of 148764439 is 934467841.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148764439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148764419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74382219 + 74382220.

It is an arithmetic number, because the mean of its divisors is an integer number (74382220).

Almost surely, 2^148764439 is an apocalyptic number.

148764439 is a deficient number, since it is larger than the sum of its proper divisors (1).

148764439 is an equidigital number, since it uses as much as digits as its factorization.

148764439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 46.

The square root of 148764439 is about 12196.9028445749. The cubic root of 148764439 is about 529.8663944704.

The spelling of 148764439 in words is "one hundred forty-eight million, seven hundred sixty-four thousand, four hundred thirty-nine".