148226609 has 2 divisors, whose sum is σ = 148226610. Its totient is φ = 148226608.

The previous prime is 148226599. The next prime is 148226669. The reversal of 148226609 is 906622841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135955600 + 12271009 = 11660^2 + 3503^2 .

It is a cyclic number.

It is not a de Polignac number, because 148226609 - 2¹² = 148222513 is a prime.

It is a super-2 number, since 2×148226609² = 43942255231277762, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (148226669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74113304 + 74113305.

It is an arithmetic number, because the mean of its divisors is an integer number (74113305).

Almost surely, 2^148226609 is an apocalyptic number.

It is an amenable number.

148226609 is a deficient number, since it is larger than the sum of its proper divisors (1).

148226609 is an equidigital number, since it uses as much as digits as its factorization.

148226609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 148226609 is about 12174.8350707515. The cubic root of 148226609 is about 529.2270791327.

The spelling of 148226609 in words is "one hundred forty-eight million, two hundred twenty-six thousand, six hundred nine".