146329138 has 4 divisors (see below), whose sum is σ = 219493710. Its totient is φ = 73164568.

The previous prime is 146329091. The next prime is 146329147. The reversal of 146329138 is 831923641.

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., 86992929 + 59336209 = 9327^2 + 7703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 146329097 and 146329106.

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 as a sum of consecutive naturals, namely, 36582283 + ... + 36582286.

Almost surely, 2^146329138 is an apocalyptic number.

146329138 is a deficient number, since it is larger than the sum of its proper divisors (73164572).

146329138 is an equidigital number, since it uses as much as digits as its factorization.

146329138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73164571.

The product of its digits is 31104, while the sum is 37.

The square root of 146329138 is about 12096.6581335508. The cubic root of 146329138 is about 526.9591356562.

The spelling of 146329138 in words is "one hundred forty-six million, three hundred twenty-nine thousand, one hundred thirty-eight".