146505497 has 2 divisors, whose sum is σ = 146505498. Its totient is φ = 146505496.

The previous prime is 146505461. The next prime is 146505509. The reversal of 146505497 is 794505641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120912016 + 25593481 = 10996^2 + 5059^2 .

It is a cyclic number.

It is not a de Polignac number, because 146505497 - 2⁶ = 146505433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146505427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73252748 + 73252749.

It is an arithmetic number, because the mean of its divisors is an integer number (73252749).

Almost surely, 2^146505497 is an apocalyptic number.

It is an amenable number.

146505497 is a deficient number, since it is larger than the sum of its proper divisors (1).

146505497 is an equidigital number, since it uses as much as digits as its factorization.

146505497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 146505497 is about 12103.9455137571. The cubic root of 146505497 is about 527.1707514631.

The spelling of 146505497 in words is "one hundred forty-six million, five hundred five thousand, four hundred ninety-seven".