145034839 has 2 divisors, whose sum is σ = 145034840. Its totient is φ = 145034838.

The previous prime is 145034807. The next prime is 145034861. The reversal of 145034839 is 938430541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145034839 - 2⁵ = 145034807 is a prime.

It is a super-3 number, since 3×145034839³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145034798 and 145034807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145034899) 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, 72517419 + 72517420.

It is an arithmetic number, because the mean of its divisors is an integer number (72517420).

Almost surely, 2^145034839 is an apocalyptic number.

145034839 is a deficient number, since it is larger than the sum of its proper divisors (1).

145034839 is an equidigital number, since it uses as much as digits as its factorization.

145034839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 145034839 is about 12043.0411026451. The cubic root of 145034839 is about 525.4008596840.

The spelling of 145034839 in words is "one hundred forty-five million, thirty-four thousand, eight hundred thirty-nine".