146249471 has 2 divisors, whose sum is σ = 146249472. Its totient is φ = 146249470.

The previous prime is 146249449. The next prime is 146249473. The reversal of 146249471 is 174942641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146249471 - 2¹⁰ = 146248447 is a prime.

It is a super-3 number, since 3×146249471³ (a number of 25 digits) contains 333 as substring.

Together with 146249473, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146249473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73124735 + 73124736.

It is an arithmetic number, because the mean of its divisors is an integer number (73124736).

Almost surely, 2^146249471 is an apocalyptic number.

146249471 is a deficient number, since it is larger than the sum of its proper divisors (1).

146249471 is an equidigital number, since it uses as much as digits as its factorization.

146249471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 146249471 is about 12093.3647509698. The cubic root of 146249471 is about 526.8634862750.

The spelling of 146249471 in words is "one hundred forty-six million, two hundred forty-nine thousand, four hundred seventy-one".