146228546 has 4 divisors (see below), whose sum is σ = 219342822. Its totient is φ = 73114272.

The previous prime is 146228539. The next prime is 146228561. The reversal of 146228546 is 645822641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 132825625 + 13402921 = 11525^2 + 3661^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36557135 + ... + 36557138.

Almost surely, 2^146228546 is an apocalyptic number.

146228546 is a deficient number, since it is larger than the sum of its proper divisors (73114276).

146228546 is an equidigital number, since it uses as much as digits as its factorization.

146228546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73114275.

The product of its digits is 92160, while the sum is 38.

The square root of 146228546 is about 12092.4995761836. The cubic root of 146228546 is about 526.8383576502.

The spelling of 146228546 in words is "one hundred forty-six million, two hundred twenty-eight thousand, five hundred forty-six".