145033849 has 3 divisors (see below), whose sum is σ = 145045893. Its totient is φ = 145021806.

The previous prime is 145033831. The next prime is 145033907. The reversal of 145033849 is 948330541.

The square root of 145033849 is 12043.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 948330541 = 59 ⋅16073399.

It is not a de Polignac number, because 145033849 - 2¹⁵ = 145001081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145033829) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6022 + ... + 18064.

It is an arithmetic number, because the mean of its divisors is an integer number (48348631).

Almost surely, 2^145033849 is an apocalyptic number.

145033849 is the 12043-rd square number.

145033849 is the 6022-nd centered octagonal number.

It is an amenable number.

145033849 is a deficient number, since it is larger than the sum of its proper divisors (12044).

145033849 is an frugal number, since it uses more digits than its factorization.

145033849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24086 (or 12043 counting only the distinct ones).

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

The cubic root of 145033849 is about 525.3996642286.

The spelling of 145033849 in words is "one hundred forty-five million, thirty-three thousand, eight hundred forty-nine".