148689469 has 2 divisors, whose sum is σ = 148689470. Its totient is φ = 148689468.

The previous prime is 148689451. The next prime is 148689517. The reversal of 148689469 is 964986841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147987225 + 702244 = 12165^2 + 838^2 .

It is a cyclic number.

It is not a de Polignac number, because 148689469 - 2¹³ = 148681277 is a prime.

It is a super-3 number, since 3×148689469³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148689449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74344734 + 74344735.

It is an arithmetic number, because the mean of its divisors is an integer number (74344735).

Almost surely, 2^148689469 is an apocalyptic number.

It is an amenable number.

148689469 is a deficient number, since it is larger than the sum of its proper divisors (1).

148689469 is an equidigital number, since it uses as much as digits as its factorization.

148689469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 55.

The square root of 148689469 is about 12193.8291360835. The cubic root of 148689469 is about 529.7773705999. Note that the first 3 decimals are identical.

The spelling of 148689469 in words is "one hundred forty-eight million, six hundred eighty-nine thousand, four hundred sixty-nine".