145828849 has 4 divisors (see below), whose sum is σ = 150857460. Its totient is φ = 140800240.

The previous prime is 145828847. The next prime is 145828883. The reversal of 145828849 is 948828541.

145828849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54760000 + 91068849 = 7400^2 + 9543^2 .

It is a cyclic number.

It is not a de Polignac number, because 145828849 - 2¹ = 145828847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145828847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2514262 + ... + 2514319.

It is an arithmetic number, because the mean of its divisors is an integer number (37714365).

Almost surely, 2^145828849 is an apocalyptic number.

It is an amenable number.

145828849 is a deficient number, since it is larger than the sum of its proper divisors (5028611).

145828849 is an equidigital number, since it uses as much as digits as its factorization.

145828849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5028610.

The product of its digits is 737280, while the sum is 49.

The square root of 145828849 is about 12075.9616180245. The cubic root of 145828849 is about 526.3579045757.

The spelling of 145828849 in words is "one hundred forty-five million, eight hundred twenty-eight thousand, eight hundred forty-nine".