148905709 has 2 divisors, whose sum is σ = 148905710. Its totient is φ = 148905708.

The previous prime is 148905671. The next prime is 148905721. The reversal of 148905709 is 907509841.

148905709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97022500 + 51883209 = 9850^2 + 7203^2 .

It is a cyclic number.

It is not a de Polignac number, because 148905709 - 2²⁵ = 115351277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148905769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74452854 + 74452855.

It is an arithmetic number, because the mean of its divisors is an integer number (74452855).

Almost surely, 2^148905709 is an apocalyptic number.

It is an amenable number.

148905709 is a deficient number, since it is larger than the sum of its proper divisors (1).

148905709 is an equidigital number, since it uses as much as digits as its factorization.

148905709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 148905709 is about 12202.6926946474. The cubic root of 148905709 is about 530.0340656874.

The spelling of 148905709 in words is "one hundred forty-eight million, nine hundred five thousand, seven hundred nine".