145957444 has 12 divisors (see below), whose sum is σ = 270450684. Its totient is φ = 68685824.

The previous prime is 145957421. The next prime is 145957451. The reversal of 145957444 is 444759541.

It can be written as a sum of positive squares in 2 ways, for example, as 124055044 + 21902400 = 11138^2 + 4680^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145957444.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073149 + ... + 1073284.

It is an arithmetic number, because the mean of its divisors is an integer number (22537557).

Almost surely, 2^145957444 is an apocalyptic number.

It is an amenable number.

145957444 is a deficient number, since it is larger than the sum of its proper divisors (124493240).

145957444 is a wasteful number, since it uses less digits than its factorization.

145957444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146454 (or 2146452 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 145957444 is about 12081.2848654437. The cubic root of 145957444 is about 526.5125770085.

The spelling of 145957444 in words is "one hundred forty-five million, nine hundred fifty-seven thousand, four hundred forty-four".