148322609 has 4 divisors (see below), whose sum is σ = 151772016. Its totient is φ = 144873204.

The previous prime is 148322599. The next prime is 148322611. The reversal of 148322609 is 906223841.

148322609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 148322609 - 2⁸ = 148322353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148322689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1724639 + ... + 1724724.

It is an arithmetic number, because the mean of its divisors is an integer number (37943004).

Almost surely, 2^148322609 is an apocalyptic number.

It is an amenable number.

148322609 is a deficient number, since it is larger than the sum of its proper divisors (3449407).

148322609 is an equidigital number, since it uses as much as digits as its factorization.

148322609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449406.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 148322609 is about 12178.7769911432. The cubic root of 148322609 is about 529.3413070158.

The spelling of 148322609 in words is "one hundred forty-eight million, three hundred twenty-two thousand, six hundred nine".