145445270 has 16 divisors (see below), whose sum is σ = 264345120. Its totient is φ = 57612864.

The previous prime is 145445269. The next prime is 145445309. The reversal of 145445270 is 72544541.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69575 + ... + 71634.

It is an arithmetic number, because the mean of its divisors is an integer number (16521570).

Almost surely, 2^145445270 is an apocalyptic number.

145445270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145445270 is a deficient number, since it is larger than the sum of its proper divisors (118899850).

145445270 is a wasteful number, since it uses less digits than its factorization.

145445270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141319.

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 145445270 is about 12060.0692369488. The cubic root of 145445270 is about 525.8959998138.

The spelling of 145445270 in words is "one hundred forty-five million, four hundred forty-five thousand, two hundred seventy".