146234729 has 2 divisors, whose sum is σ = 146234730. Its totient is φ = 146234728.

The previous prime is 146234723. The next prime is 146234783. The reversal of 146234729 is 927432641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126450025 + 19784704 = 11245^2 + 4448^2 .

It is an emirp because it is prime and its reverse (927432641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146234729 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 146234692 and 146234701.

It is not a weakly prime, because it can be changed into another prime (146234723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73117364 + 73117365.

It is an arithmetic number, because the mean of its divisors is an integer number (73117365).

Almost surely, 2^146234729 is an apocalyptic number.

It is an amenable number.

146234729 is a deficient number, since it is larger than the sum of its proper divisors (1).

146234729 is an equidigital number, since it uses as much as digits as its factorization.

146234729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 146234729 is about 12092.7552278213. The cubic root of 146234729 is about 526.8457830030.

The spelling of 146234729 in words is "one hundred forty-six million, two hundred thirty-four thousand, seven hundred twenty-nine".