145130833 has 2 divisors, whose sum is σ = 145130834. Its totient is φ = 145130832.

The previous prime is 145130831. The next prime is 145130863. The reversal of 145130833 is 338031541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141919569 + 3211264 = 11913^2 + 1792^2 .

It is an emirp because it is prime and its reverse (338031541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145130833 - 2¹ = 145130831 is a prime.

Together with 145130831, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (145130831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72565416 + 72565417.

It is an arithmetic number, because the mean of its divisors is an integer number (72565417).

Almost surely, 2^145130833 is an apocalyptic number.

It is an amenable number.

145130833 is a deficient number, since it is larger than the sum of its proper divisors (1).

145130833 is an equidigital number, since it uses as much as digits as its factorization.

145130833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 145130833 is about 12047.0258985361. The cubic root of 145130833 is about 525.5167495566.

The spelling of 145130833 in words is "one hundred forty-five million, one hundred thirty thousand, eight hundred thirty-three".