146155189 has 2 divisors, whose sum is σ = 146155190. Its totient is φ = 146155188.

The previous prime is 146155183. The next prime is 146155211. The reversal of 146155189 is 981551641.

146155189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128640964 + 17514225 = 11342^2 + 4185^2 .

It is a cyclic number.

It is not a de Polignac number, because 146155189 - 2¹¹ = 146153141 is a prime.

It is a super-2 number, since 2×146155189² = 42722678543251442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146155183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73077594 + 73077595.

It is an arithmetic number, because the mean of its divisors is an integer number (73077595).

Almost surely, 2^146155189 is an apocalyptic number.

It is an amenable number.

146155189 is a deficient number, since it is larger than the sum of its proper divisors (1).

146155189 is an equidigital number, since it uses as much as digits as its factorization.

146155189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 40.

The square root of 146155189 is about 12089.4660345277. The cubic root of 146155189 is about 526.7502450190.

The spelling of 146155189 in words is "one hundred forty-six million, one hundred fifty-five thousand, one hundred eighty-nine".