146378746 has 8 divisors (see below), whose sum is σ = 221171220. Its totient is φ = 72655008.

The previous prime is 146378741. The next prime is 146378767. The reversal of 146378746 is 647873641.

It can be written as a sum of positive squares in 2 ways, for example, as 132503121 + 13875625 = 11511^2 + 3725^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 146378696 and 146378705.

It is not an unprimeable number, because it can be changed into a prime (146378741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266841 + ... + 267388.

Almost surely, 2^146378746 is an apocalyptic number.

146378746 is a deficient number, since it is larger than the sum of its proper divisors (74792474).

146378746 is a wasteful number, since it uses less digits than its factorization.

146378746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534368.

The product of its digits is 677376, while the sum is 46.

The square root of 146378746 is about 12098.7084434662. The cubic root of 146378746 is about 527.0186782180.

The spelling of 146378746 in words is "one hundred forty-six million, three hundred seventy-eight thousand, seven hundred forty-six".