145630544 has 10 divisors (see below), whose sum is σ = 282159210. Its totient is φ = 72815264.

The previous prime is 145630543. The next prime is 145630559. The reversal of 145630544 is 445036541.

It can be written as a sum of positive squares in only one way, i.e., 132526144 + 13104400 = 11512^2 + 3620^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 145630544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145630543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4550939 + ... + 4550970.

It is an arithmetic number, because the mean of its divisors is an integer number (28215921).

Almost surely, 2^145630544 is an apocalyptic number.

It is an amenable number.

145630544 is a deficient number, since it is larger than the sum of its proper divisors (136528666).

145630544 is an equidigital number, since it uses as much as digits as its factorization.

145630544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101917 (or 9101911 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 145630544 is about 12067.7480915041. The cubic root of 145630544 is about 526.1192075138.

The spelling of 145630544 in words is "one hundred forty-five million, six hundred thirty thousand, five hundred forty-four".