20146023 has 32 divisors (see below), whose sum is σ = 31737600. Its totient is φ = 12594528.

The previous prime is 20145997. The next prime is 20146031. The reversal of 20146023 is 32064102.

It is a happy number.

20146023 is a `hidden beast` number, since 201 + 460 + 2 + 3 = 666.

It is not a de Polignac number, because 20146023 - 2⁵ = 20145991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20145987 and 20146005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20146073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88636 + ... + 88862.

It is an arithmetic number, because the mean of its divisors is an integer number (991800).

Almost surely, 2^20146023 is an apocalyptic number.

20146023 is a deficient number, since it is larger than the sum of its proper divisors (11591577).

20146023 is a wasteful number, since it uses less digits than its factorization.

20146023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20146023 is about 4488.4321316023. The cubic root of 20146023 is about 272.1007727454.

The spelling of 20146023 in words is "twenty million, one hundred forty-six thousand, twenty-three".