20101463 has 4 divisors (see below), whose sum is σ = 21283920. Its totient is φ = 18919008.

The previous prime is 20101427. The next prime is 20101483. The reversal of 20101463 is 36410102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20101463 - 2⁶ = 20101399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 1182439 = 20101463 / (2 + 0 + 1 + 0 + 1 + 4 + 6 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591203 + ... + 591236.

It is an arithmetic number, because the mean of its divisors is an integer number (5320980).

Almost surely, 2^20101463 is an apocalyptic number.

20101463 is a deficient number, since it is larger than the sum of its proper divisors (1182457).

20101463 is a wasteful number, since it uses less digits than its factorization.

20101463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182456.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20101463 is about 4483.4655123018. The cubic root of 20101463 is about 271.9000092024.

Adding to 20101463 its reverse (36410102), we get a palindrome (56511565).

The spelling of 20101463 in words is "twenty million, one hundred one thousand, four hundred sixty-three".