146019257 has 2 divisors, whose sum is σ = 146019258. Its totient is φ = 146019256.

The previous prime is 146019233. The next prime is 146019283. The reversal of 146019257 is 752910641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135932281 + 10086976 = 11659^2 + 3176^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146019257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146019217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73009628 + 73009629.

It is an arithmetic number, because the mean of its divisors is an integer number (73009629).

Almost surely, 2^146019257 is an apocalyptic number.

It is an amenable number.

146019257 is a deficient number, since it is larger than the sum of its proper divisors (1).

146019257 is an equidigital number, since it uses as much as digits as its factorization.

146019257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 146019257 is about 12083.8428076502. The cubic root of 146019257 is about 526.5868925711.

Adding to 146019257 its reverse (752910641), we get a palindrome (898929898).

The spelling of 146019257 in words is "one hundred forty-six million, nineteen thousand, two hundred fifty-seven".