145775286 has 48 divisors (see below), whose sum is σ = 330220800. Its totient is φ = 46416384.

The previous prime is 145775269. The next prime is 145775291. The reversal of 145775286 is 682577541.

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 23 ways as a sum of consecutive naturals, for example, 49195 + ... + 52073.

It is an arithmetic number, because the mean of its divisors is an integer number (6879600).

Almost surely, 2^145775286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145775286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165110400).

145775286 is an abundant number, since it is smaller than the sum of its proper divisors (184445514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145775286 is a wasteful number, since it uses less digits than its factorization.

145775286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3013 (or 3010 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 145775286 is about 12073.7436613504. The cubic root of 145775286 is about 526.2934528545.

The spelling of 145775286 in words is "one hundred forty-five million, seven hundred seventy-five thousand, two hundred eighty-six".