146690 has 8 divisors (see below), whose sum is σ = 264060. Its totient is φ = 58672.

The previous prime is 146683. The next prime is 146701. The reversal of 146690 is 96641.

It is a Cunningham number, because it is equal to 383²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 146689 + 1 = 383^2 + 1^2 .

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

It is a super-2 number, since 2×146690² = 43035912200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7325 + ... + 7344.

2¹⁴⁶⁶⁹⁰ is an apocalyptic number.

146690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146690 is a deficient number, since it is larger than the sum of its proper divisors (117370).

146690 is a wasteful number, since it uses less digits than its factorization.

146690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14676.

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

The square root of 146690 is about 383.0013054808. The cubic root of 146690 is about 52.7391957687.

The spelling of 146690 in words is "one hundred forty-six thousand, six hundred ninety".