146022401 has 24 divisors (see below), whose sum is σ = 180756576. Its totient is φ = 117210240.

The previous prime is 146022397. The next prime is 146022427. The reversal of 146022401 is 104220641.

It is not a de Polignac number, because 146022401 - 2² = 146022397 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146022491) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 255446 + ... + 256016.

It is an arithmetic number, because the mean of its divisors is an integer number (7531524).

Almost surely, 2^146022401 is an apocalyptic number.

It is an amenable number.

146022401 is a deficient number, since it is larger than the sum of its proper divisors (34734175).

146022401 is a wasteful number, since it uses less digits than its factorization.

146022401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 146022401 is about 12083.9728980166. The cubic root of 146022401 is about 526.5906719294.

The spelling of 146022401 in words is "one hundred forty-six million, twenty-two thousand, four hundred one".