145224470 has 16 divisors (see below), whose sum is σ = 261785520. Its totient is φ = 58005024.

The previous prime is 145224463. The next prime is 145224479. The reversal of 145224470 is 74422541.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145224479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3152 + ... + 17331.

It is an arithmetic number, because the mean of its divisors is an integer number (16361595).

Almost surely, 2^145224470 is an apocalyptic number.

145224470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145224470 is a deficient number, since it is larger than the sum of its proper divisors (116561050).

145224470 is a wasteful number, since it uses less digits than its factorization.

145224470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21199.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 145224470 is about 12050.9115837766. The cubic root of 145224470 is about 525.6297446885.

The spelling of 145224470 in words is "one hundred forty-five million, two hundred twenty-four thousand, four hundred seventy".