145212544 has 32 divisors (see below), whose sum is σ = 289843200. Its totient is φ = 72467712.

The previous prime is 145212523. The next prime is 145212553. The reversal of 145212544 is 445212541.

It is a tau number, because it is divible by the number of its divisors (32).

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, 112897 + ... + 114175.

It is an arithmetic number, because the mean of its divisors is an integer number (9057600).

Almost surely, 2^145212544 is an apocalyptic number.

It is an amenable number.

145212544 is a deficient number, since it is larger than the sum of its proper divisors (144630656).

145212544 is an equidigital number, since it uses as much as digits as its factorization.

145212544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180 (or 2168 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 145212544 is about 12050.4167562786. The cubic root of 145212544 is about 525.6153558555.

The spelling of 145212544 in words is "one hundred forty-five million, two hundred twelve thousand, five hundred forty-four".