145682978 has 12 divisors (see below), whose sum is σ = 254202102. Its totient is φ = 62435520.

The previous prime is 145682959. The next prime is 145682987. The reversal of 145682978 is 879286541.

It can be written as a sum of positive squares in only one way, i.e., 143113369 + 2569609 = 11963^2 + 1603^2 .

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 5 ways as a sum of consecutive naturals, for example, 743183 + ... + 743378.

Almost surely, 2^145682978 is an apocalyptic number.

145682978 is a deficient number, since it is larger than the sum of its proper divisors (108519124).

145682978 is a wasteful number, since it uses less digits than its factorization.

145682978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486577 (or 1486570 counting only the distinct ones).

The product of its digits is 967680, while the sum is 50.

The square root of 145682978 is about 12069.9203808476. The cubic root of 145682978 is about 526.1823426767.

The spelling of 145682978 in words is "one hundred forty-five million, six hundred eighty-two thousand, nine hundred seventy-eight".