5143406121 has 20 divisors (see below), whose sum is σ = 8780983552. Its totient is φ = 2939088888.

The previous prime is 5143406111. The next prime is 5143406143. The reversal of 5143406121 is 1216043415.

It is a happy number.

5143406121 is a `hidden beast` number, since 5 + 1 + 4 + 3 + 40 + 612 + 1 = 666.

It is not a de Polignac number, because 5143406121 - 2⁹ = 5143405609 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5143406111) 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 19 ways as a sum of consecutive naturals, for example, 4535065 + ... + 4536198.

Almost surely, 2^5143406121 is an apocalyptic number.

It is an amenable number.

5143406121 is a deficient number, since it is larger than the sum of its proper divisors (3637577431).

5143406121 is an equidigital number, since it uses as much as digits as its factorization.

5143406121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9071282 (or 9071273 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 5143406121 is about 71717.5440251547. The cubic root of 5143406121 is about 1726.1701640667.

Adding to 5143406121 its reverse (1216043415), we get a palindrome (6359449536).

The spelling of 5143406121 in words is "five billion, one hundred forty-three million, four hundred six thousand, one hundred twenty-one".