146220097 has 2 divisors, whose sum is σ = 146220098. Its totient is φ = 146220096.

The previous prime is 146220091. The next prime is 146220199. The reversal of 146220097 is 790022641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146143921 + 76176 = 12089^2 + 276^2 .

It is a cyclic number.

It is not a de Polignac number, because 146220097 - 2²³ = 137831489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146220091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73110048 + 73110049.

It is an arithmetic number, because the mean of its divisors is an integer number (73110049).

Almost surely, 2^146220097 is an apocalyptic number.

It is an amenable number.

146220097 is a deficient number, since it is larger than the sum of its proper divisors (1).

146220097 is an equidigital number, since it uses as much as digits as its factorization.

146220097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 146220097 is about 12092.1502223550. The cubic root of 146220097 is about 526.8282106505.

The spelling of 146220097 in words is "one hundred forty-six million, two hundred twenty thousand, ninety-seven".