145836839 has 2 divisors, whose sum is σ = 145836840. Its totient is φ = 145836838.

The previous prime is 145836833. The next prime is 145836841. The reversal of 145836839 is 938638541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145836839 - 2¹⁶ = 145771303 is a prime.

Together with 145836841, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 145836793 and 145836802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145836833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72918419 + 72918420.

It is an arithmetic number, because the mean of its divisors is an integer number (72918420).

Almost surely, 2^145836839 is an apocalyptic number.

145836839 is a deficient number, since it is larger than the sum of its proper divisors (1).

145836839 is an equidigital number, since it uses as much as digits as its factorization.

145836839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 145836839 is about 12076.2924360087. The cubic root of 145836839 is about 526.3675174950.

The spelling of 145836839 in words is "one hundred forty-five million, eight hundred thirty-six thousand, eight hundred thirty-nine".