145684878 has 16 divisors (see below), whose sum is σ = 292999680. Its totient is φ = 48289976.

The previous prime is 145684871. The next prime is 145684879. The reversal of 145684878 is 878486541.

It is a self number, because there is not a number n which added to its sum of digits gives 145684878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145684871) 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, 66750 + ... + 68897.

It is an arithmetic number, because the mean of its divisors is an integer number (18312480).

Almost surely, 2^145684878 is an apocalyptic number.

145684878 is an abundant number, since it is smaller than the sum of its proper divisors (147314802).

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

145684878 is a wasteful number, since it uses less digits than its factorization.

145684878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135831.

The product of its digits is 1720320, while the sum is 51.

The square root of 145684878 is about 12069.9990886495. Note that the first 3 decimals coincide. The cubic root of 145684878 is about 526.1846301599.

The spelling of 145684878 in words is "one hundred forty-five million, six hundred eighty-four thousand, eight hundred seventy-eight".