183145813 has 2 divisors, whose sum is σ = 183145814. Its totient is φ = 183145812.

The previous prime is 183145763. The next prime is 183145829. The reversal of 183145813 is 318541381.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182601169 + 544644 = 13513^2 + 738^2 .

It is an emirp because it is prime and its reverse (318541381) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-183145813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (183145873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91572906 + 91572907.

It is an arithmetic number, because the mean of its divisors is an integer number (91572907).

Almost surely, 2^183145813 is an apocalyptic number.

It is an amenable number.

183145813 is a deficient number, since it is larger than the sum of its proper divisors (1).

183145813 is an equidigital number, since it uses as much as digits as its factorization.

183145813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 34.

The square root of 183145813 is about 13533.1375888964. The cubic root of 183145813 is about 567.8918876509.

The spelling of 183145813 in words is "one hundred eighty-three million, one hundred forty-five thousand, eight hundred thirteen".