145622878 has 16 divisors (see below), whose sum is σ = 230325120. Its totient is φ = 68861016.

The previous prime is 145622863. The next prime is 145622879. The reversal of 145622878 is 878226541.

It is a happy number.

145622878 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 (145622879) 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, 21625 + ... + 27547.

It is an arithmetic number, because the mean of its divisors is an integer number (14395320).

Almost surely, 2^145622878 is an apocalyptic number.

145622878 is a deficient number, since it is larger than the sum of its proper divisors (84702242).

145622878 is a wasteful number, since it uses less digits than its factorization.

145622878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6591.

The product of its digits is 215040, while the sum is 43.

The square root of 145622878 is about 12067.4304638560. The cubic root of 145622878 is about 526.1099757036.

The spelling of 145622878 in words is "one hundred forty-five million, six hundred twenty-two thousand, eight hundred seventy-eight".