146556281 has 2 divisors, whose sum is σ = 146556282. Its totient is φ = 146556280.

The previous prime is 146556247. The next prime is 146556307. The reversal of 146556281 is 182655641.

It is a happy number.

146556281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126450025 + 20106256 = 11245^2 + 4484^2 .

It is a cyclic number.

It is not a de Polignac number, because 146556281 - 2⁶ = 146556217 is a prime.

It is a super-2 number, since 2×146556281² = 42957487001101922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (146550281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73278140 + 73278141.

It is an arithmetic number, because the mean of its divisors is an integer number (73278141).

Almost surely, 2^146556281 is an apocalyptic number.

It is an amenable number.

146556281 is a deficient number, since it is larger than the sum of its proper divisors (1).

146556281 is an equidigital number, since it uses as much as digits as its factorization.

146556281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 38.

The square root of 146556281 is about 12106.0431603394. The cubic root of 146556281 is about 527.2316564513.

The spelling of 146556281 in words is "one hundred forty-six million, five hundred fifty-six thousand, two hundred eighty-one".