20148723 has 32 divisors (see below), whose sum is σ = 36126720. Its totient is φ = 10834560.

The previous prime is 20148679. The next prime is 20148763. The reversal of 20148723 is 32784102.

It is not a de Polignac number, because 20148723 - 2⁹ = 20148211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20148763) 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, 78 + ... + 6348.

It is an arithmetic number, because the mean of its divisors is an integer number (1128960).

Almost surely, 2^20148723 is an apocalyptic number.

20148723 is a deficient number, since it is larger than the sum of its proper divisors (15977997).

20148723 is a wasteful number, since it uses less digits than its factorization.

20148723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304 (or 6298 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20148723 is about 4488.7328947043. The cubic root of 20148723 is about 272.1129279859.

The spelling of 20148723 in words is "twenty million, one hundred forty-eight thousand, seven hundred twenty-three".