145053839 has 8 divisors (see below), whose sum is σ = 165900288. Its totient is φ = 124238520.

The previous prime is 145053827. The next prime is 145053841. The reversal of 145053839 is 938350541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-145053839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145055839) 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 in 7 ways as a sum of consecutive naturals, for example, 3254 + ... + 17340.

It is an arithmetic number, because the mean of its divisors is an integer number (20737536).

Almost surely, 2^145053839 is an apocalyptic number.

145053839 is a deficient number, since it is larger than the sum of its proper divisors (20846449).

145053839 is a wasteful number, since it uses less digits than its factorization.

145053839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15565.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 145053839 is about 12043.8299141095. The cubic root of 145053839 is about 525.4238017130.

The spelling of 145053839 in words is "one hundred forty-five million, fifty-three thousand, eight hundred thirty-nine".