20461283 has 8 divisors (see below), whose sum is σ = 21517056. Its totient is φ = 19419400.

The previous prime is 20461279. The next prime is 20461297. The reversal of 20461283 is 38216402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20461283 - 2² = 20461279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20461223) 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 in 7 ways as a sum of consecutive naturals, for example, 383 + ... + 6408.

It is an arithmetic number, because the mean of its divisors is an integer number (2689632).

Almost surely, 2^20461283 is an apocalyptic number.

20461283 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20461283 is a deficient number, since it is larger than the sum of its proper divisors (1055773).

20461283 is a wasteful number, since it uses less digits than its factorization.

20461283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6945.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20461283 is about 4523.4149710147. The cubic root of 20461283 is about 273.5127780961.

Adding to 20461283 its reverse (38216402), we get a palindrome (58677685).

It can be divided in two parts, 20 and 461283, that multiplied together give a triangular number (9225660 = T₄₂₉₅).

The spelling of 20461283 in words is "twenty million, four hundred sixty-one thousand, two hundred eighty-three".