20154483 has 6 divisors (see below), whose sum is σ = 29112044. Its totient is φ = 13436316.

The previous prime is 20154473. The next prime is 20154523. The reversal of 20154483 is 38445102.

It is not a de Polignac number, because 20154483 - 2⁶ = 20154419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20154403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1119685 + ... + 1119702.

Almost surely, 2^20154483 is an apocalyptic number.

20154483 is a deficient number, since it is larger than the sum of its proper divisors (8957561).

20154483 is a wasteful number, since it uses less digits than its factorization.

20154483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239393 (or 2239390 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 20154483 is about 4489.3744553111. The cubic root of 20154483 is about 272.1388555370.

Adding to 20154483 its reverse (38445102), we get a palindrome (58599585).

The spelling of 20154483 in words is "twenty million, one hundred fifty-four thousand, four hundred eighty-three".