146198473 has 2 divisors, whose sum is σ = 146198474. Its totient is φ = 146198472.

The previous prime is 146198471. The next prime is 146198501. The reversal of 146198473 is 374891641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128867904 + 17330569 = 11352^2 + 4163^2 .

It is a cyclic number.

It is not a de Polignac number, because 146198473 - 2¹ = 146198471 is a prime.

Together with 146198471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (146198471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73099236 + 73099237.

It is an arithmetic number, because the mean of its divisors is an integer number (73099237).

Almost surely, 2^146198473 is an apocalyptic number.

It is an amenable number.

146198473 is a deficient number, since it is larger than the sum of its proper divisors (1).

146198473 is an equidigital number, since it uses as much as digits as its factorization.

146198473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 146198473 is about 12091.2560555138. The cubic root of 146198473 is about 526.8022390841.

The spelling of 146198473 in words is "one hundred forty-six million, one hundred ninety-eight thousand, four hundred seventy-three".