145255558 has 16 divisors (see below), whose sum is σ = 249258240. Its totient is φ = 62190216.

The previous prime is 145255549. The next prime is 145255559. The reversal of 145255558 is 855552541.

It is a super-3 number, since 3×145255558³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145255558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145255559) 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 in 7 ways as a sum of consecutive naturals, for example, 11103 + ... + 20341.

It is an arithmetic number, because the mean of its divisors is an integer number (15578640).

Almost surely, 2^145255558 is an apocalyptic number.

145255558 is a deficient number, since it is larger than the sum of its proper divisors (104002682).

145255558 is a wasteful number, since it uses less digits than its factorization.

145255558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10371.

The product of its digits is 200000, while the sum is 40.

The square root of 145255558 is about 12052.2013756824. The cubic root of 145255558 is about 525.6672489549.

The spelling of 145255558 in words is "one hundred forty-five million, two hundred fifty-five thousand, five hundred fifty-eight".