146906 has 4 divisors (see below), whose sum is σ = 220362. Its totient is φ = 73452.

The previous prime is 146893. The next prime is 146917. The reversal of 146906 is 609641.

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., 116281 + 30625 = 341^2 + 175^2 .

It is an unprimeable number.

146906 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36725 + ... + 36728.

2¹⁴⁶⁹⁰⁶ is an apocalyptic number.

146906 is a deficient number, since it is larger than the sum of its proper divisors (73456).

146906 is an equidigital number, since it uses as much as digits as its factorization.

146906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73455.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 146906 is about 383.2831851256. The cubic root of 146906 is about 52.7650691058.

The spelling of 146906 in words is "one hundred forty-six thousand, nine hundred six".