146358181 has 2 divisors, whose sum is σ = 146358182. Its totient is φ = 146358180.

The previous prime is 146358169. The next prime is 146358187. The reversal of 146358181 is 181853641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82901025 + 63457156 = 9105^2 + 7966^2 .

It is a cyclic number.

It is not a de Polignac number, because 146358181 - 2⁷ = 146358053 is a prime.

It is a super-2 number, since 2×146358181² = 42841434291257522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 146358181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146358187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73179090 + 73179091.

It is an arithmetic number, because the mean of its divisors is an integer number (73179091).

Almost surely, 2^146358181 is an apocalyptic number.

It is an amenable number.

146358181 is a deficient number, since it is larger than the sum of its proper divisors (1).

146358181 is an equidigital number, since it uses as much as digits as its factorization.

146358181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 37.

The square root of 146358181 is about 12097.8585295084. The cubic root of 146358181 is about 526.9939964774.

The spelling of 146358181 in words is "one hundred forty-six million, three hundred fifty-eight thousand, one hundred eighty-one".