145881286 has 16 divisors (see below), whose sum is σ = 222354720. Its totient is φ = 71767360.

The previous prime is 145881271. The next prime is 145881289. The reversal of 145881286 is 682188541.

145881286 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145881289) 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, 112530 + ... + 113818.

It is an arithmetic number, because the mean of its divisors is an integer number (13897170).

Almost surely, 2^145881286 is an apocalyptic number.

145881286 is a deficient number, since it is larger than the sum of its proper divisors (76473434).

145881286 is a wasteful number, since it uses less digits than its factorization.

145881286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159.

The product of its digits is 122880, while the sum is 43.

The square root of 145881286 is about 12078.1325543314. The cubic root of 145881286 is about 526.4209861084.

The spelling of 145881286 in words is "one hundred forty-five million, eight hundred eighty-one thousand, two hundred eighty-six".