146145442 has 16 divisors (see below), whose sum is σ = 227480760. Its totient is φ = 70334208.

The previous prime is 146145407. The next prime is 146145451. The reversal of 146145442 is 244541641.

It can be written as a sum of positive squares in 4 ways, for example, as 139688761 + 6456681 = 11819^2 + 2541^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15808 + ... + 23284.

Almost surely, 2^146145442 is an apocalyptic number.

146145442 is a deficient number, since it is larger than the sum of its proper divisors (81335318).

146145442 is a wasteful number, since it uses less digits than its factorization.

146145442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7845.

The product of its digits is 15360, while the sum is 31.

The square root of 146145442 is about 12089.0629082655. The cubic root of 146145442 is about 526.7385352084.

The spelling of 146145442 in words is "one hundred forty-six million, one hundred forty-five thousand, four hundred forty-two".