146986946 has 4 divisors (see below), whose sum is σ = 220480422. Its totient is φ = 73493472.

The previous prime is 146986909. The next prime is 146986949. The reversal of 146986946 is 649689641.

It is a happy number.

146986946 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649689641 = 11719 ⋅55439.

It can be written as a sum of positive squares in only one way, i.e., 92064025 + 54922921 = 9595^2 + 7411^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146986949) by changing a digit.

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, 36746735 + ... + 36746738.

Almost surely, 2^146986946 is an apocalyptic number.

146986946 is a deficient number, since it is larger than the sum of its proper divisors (73493476).

146986946 is an equidigital number, since it uses as much as digits as its factorization.

146986946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73493475.

The product of its digits is 2239488, while the sum is 53.

The square root of 146986946 is about 12123.8173031434. The cubic root of 146986946 is about 527.7475860583.

The spelling of 146986946 in words is "one hundred forty-six million, nine hundred eighty-six thousand, nine hundred forty-six".