146023401 has 4 divisors (see below), whose sum is σ = 194697872. Its totient is φ = 97348932.

The previous prime is 146023393. The next prime is 146023403. The reversal of 146023401 is 104320641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104320641 = 3 ⋅34773547.

It is not a de Polignac number, because 146023401 - 2³ = 146023393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146023403) 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 in 3 ways as a sum of consecutive naturals, for example, 24337231 + ... + 24337236.

It is an arithmetic number, because the mean of its divisors is an integer number (48674468).

Almost surely, 2^146023401 is an apocalyptic number.

It is an amenable number.

146023401 is a deficient number, since it is larger than the sum of its proper divisors (48674471).

146023401 is an equidigital number, since it uses as much as digits as its factorization.

146023401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48674470.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 146023401 is about 12084.0142750660. The cubic root of 146023401 is about 526.5918740041.

The spelling of 146023401 in words is "one hundred forty-six million, twenty-three thousand, four hundred one".