146143813 has 2 divisors, whose sum is σ = 146143814. Its totient is φ = 146143812.

The previous prime is 146143807. The next prime is 146143831. The reversal of 146143813 is 318341641.

Together with next prime (146143831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139783329 + 6360484 = 11823^2 + 2522^2 .

It is an emirp because it is prime and its reverse (318341641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146143813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146143913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73071906 + 73071907.

It is an arithmetic number, because the mean of its divisors is an integer number (73071907).

Almost surely, 2^146143813 is an apocalyptic number.

It is an amenable number.

146143813 is a deficient number, since it is larger than the sum of its proper divisors (1).

146143813 is an equidigital number, since it uses as much as digits as its factorization.

146143813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 146143813 is about 12088.9955331285. The cubic root of 146143813 is about 526.7365781163.

The spelling of 146143813 in words is "one hundred forty-six million, one hundred forty-three thousand, eight hundred thirteen".