146194913 has 2 divisors, whose sum is σ = 146194914. Its totient is φ = 146194912.

The previous prime is 146194903. The next prime is 146194921. The reversal of 146194913 is 319491641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127080529 + 19114384 = 11273^2 + 4372^2 .

It is a cyclic number.

It is not a de Polignac number, because 146194913 - 2⁴ = 146194897 is a prime.

It is not a weakly prime, because it can be changed into another prime (146194903) 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, 73097456 + 73097457.

It is an arithmetic number, because the mean of its divisors is an integer number (73097457).

Almost surely, 2^146194913 is an apocalyptic number.

It is an amenable number.

146194913 is a deficient number, since it is larger than the sum of its proper divisors (1).

146194913 is an equidigital number, since it uses as much as digits as its factorization.

146194913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The square root of 146194913 is about 12091.1088407970. The cubic root of 146194913 is about 526.7979630906.

The spelling of 146194913 in words is "one hundred forty-six million, one hundred ninety-four thousand, nine hundred thirteen".