146421679 has 4 divisors (see below), whose sum is σ = 146476440. Its totient is φ = 146366920.

The previous prime is 146421673. The next prime is 146421683. The reversal of 146421679 is 976124641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 976124641 = 7229 ⋅135029.

It is a cyclic number.

It is not a de Polignac number, because 146421679 - 2¹¹ = 146419631 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146421673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23152 + ... + 28789.

It is an arithmetic number, because the mean of its divisors is an integer number (36619110).

Almost surely, 2^146421679 is an apocalyptic number.

146421679 is a deficient number, since it is larger than the sum of its proper divisors (54761).

146421679 is an equidigital number, since it uses as much as digits as its factorization.

146421679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54760.

The product of its digits is 72576, while the sum is 40.

The square root of 146421679 is about 12100.4825936820. The cubic root of 146421679 is about 527.0701981774.

The spelling of 146421679 in words is "one hundred forty-six million, four hundred twenty-one thousand, six hundred seventy-nine".