20148763 has 2 divisors, whose sum is σ = 20148764. Its totient is φ = 20148762.

The previous prime is 20148679. The next prime is 20148767. The reversal of 20148763 is 36784102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20148763 - 2⁹ = 20148251 is a prime.

It is not a weakly prime, because it can be changed into another prime (20148767) 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 as a sum of consecutive naturals, namely, 10074381 + 10074382.

It is an arithmetic number, because the mean of its divisors is an integer number (10074382).

Almost surely, 2^20148763 is an apocalyptic number.

20148763 is a deficient number, since it is larger than the sum of its proper divisors (1).

20148763 is an equidigital number, since it uses as much as digits as its factorization.

20148763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 20148763 is about 4488.7373503024. The cubic root of 20148763 is about 272.1131080554.

The spelling of 20148763 in words is "twenty million, one hundred forty-eight thousand, seven hundred sixty-three".