145186886 has 12 divisors (see below), whose sum is σ = 235821852. Its totient is φ = 67009176.

The previous prime is 145186841. The next prime is 145186889. The reversal of 145186886 is 688681541.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145186886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145186889) 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 5 ways as a sum of consecutive naturals, for example, 214436 + ... + 215111.

It is an arithmetic number, because the mean of its divisors is an integer number (19651821).

Almost surely, 2^145186886 is an apocalyptic number.

145186886 is a deficient number, since it is larger than the sum of its proper divisors (90634966).

145186886 is a wasteful number, since it uses less digits than its factorization.

145186886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429575 (or 429562 counting only the distinct ones).

The product of its digits is 368640, while the sum is 47.

The square root of 145186886 is about 12049.3520987645. The cubic root of 145186886 is about 525.5843965623.

The spelling of 145186886 in words is "one hundred forty-five million, one hundred eighty-six thousand, eight hundred eighty-six".