2154631746143 has 2 divisors, whose sum is σ = 2154631746144. Its totient is φ = 2154631746142.

The previous prime is 2154631746121. The next prime is 2154631746149. The reversal of 2154631746143 is 3416471364512.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2154631746143 - 2⁸ = 2154631745887 is a prime.

It is a super-2 number, since 2×2154631746143² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154631746149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077315873071 + 1077315873072.

It is an arithmetic number, because the mean of its divisors is an integer number (1077315873072).

Almost surely, 2^{2154631746143} is an apocalyptic number.

2154631746143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154631746143 is an equidigital number, since it uses as much as digits as its factorization.

2154631746143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 47.

The spelling of 2154631746143 in words is "two trillion, one hundred fifty-four billion, six hundred thirty-one million, seven hundred forty-six thousand, one hundred forty-three".