145555570 has 16 divisors (see below), whose sum is σ = 262145880. Its totient is φ = 58189824.

The previous prime is 145555511. The next prime is 145555591. The reversal of 145555570 is 75555541.

145555570 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 54715609 + 90839961 = 7397^2 + 9531^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24184 + ... + 29596.

Almost surely, 2^145555570 is an apocalyptic number.

145555570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145555570 is a deficient number, since it is larger than the sum of its proper divisors (116590310).

145555570 is a wasteful number, since it uses less digits than its factorization.

145555570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8109.

The product of its (nonzero) digits is 87500, while the sum is 37.

The square root of 145555570 is about 12064.6413125298. The cubic root of 145555570 is about 526.0289058700.

The spelling of 145555570 in words is "one hundred forty-five million, five hundred fifty-five thousand, five hundred seventy".