146147673209 has 2 divisors, whose sum is σ = 146147673210. Its totient is φ = 146147673208.

The previous prime is 146147673121. The next prime is 146147673229. The reversal of 146147673209 is 902376741641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96003924025 + 50143749184 = 309845^2 + 223928^2 .

It is an emirp because it is prime and its reverse (902376741641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146147673209 is a prime.

It is not a weakly prime, because it can be changed into another prime (146147673229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73073836604 + 73073836605.

It is an arithmetic number, because the mean of its divisors is an integer number (73073836605).

Almost surely, 2^146147673209 is an apocalyptic number.

It is an amenable number.

146147673209 is a deficient number, since it is larger than the sum of its proper divisors (1).

146147673209 is an equidigital number, since it uses as much as digits as its factorization.

146147673209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 146147673209 in words is "one hundred forty-six billion, one hundred forty-seven million, six hundred seventy-three thousand, two hundred nine".