145932549 has 16 divisors (see below), whose sum is σ = 222543360. Its totient is φ = 83326320.

The previous prime is 145932541. The next prime is 145932569. The reversal of 145932549 is 945239541.

It is not a de Polignac number, because 145932549 - 2³ = 145932541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145932549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145932541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47634 + ... + 50604.

It is an arithmetic number, because the mean of its divisors is an integer number (13908960).

Almost surely, 2^145932549 is an apocalyptic number.

It is an amenable number.

145932549 is a deficient number, since it is larger than the sum of its proper divisors (76610811).

145932549 is a wasteful number, since it uses less digits than its factorization.

145932549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5320.

The product of its digits is 194400, while the sum is 42.

The square root of 145932549 is about 12080.2545089083. The cubic root of 145932549 is about 526.4826407121.

The spelling of 145932549 in words is "one hundred forty-five million, nine hundred thirty-two thousand, five hundred forty-nine".