54691400143 has 2 divisors, whose sum is σ = 54691400144. Its totient is φ = 54691400142.

The previous prime is 54691400129. The next prime is 54691400171. The reversal of 54691400143 is 34100419645.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54691400143 is a prime.

It is a super-2 number, since 2×54691400143² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54691410143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27345700071 + 27345700072.

It is an arithmetic number, because the mean of its divisors is an integer number (27345700072).

Almost surely, 2^54691400143 is an apocalyptic number.

54691400143 is a deficient number, since it is larger than the sum of its proper divisors (1).

54691400143 is an equidigital number, since it uses as much as digits as its factorization.

54691400143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

Adding to 54691400143 its reverse (34100419645), we get a palindrome (88791819788).

The spelling of 54691400143 in words is "fifty-four billion, six hundred ninety-one million, four hundred thousand, one hundred forty-three".