1351643154171 has 4 divisors (see below), whose sum is σ = 1802190872232. Its totient is φ = 901095436112.

The previous prime is 1351643154149. The next prime is 1351643154181. The reversal of 1351643154171 is 1714513461531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1351643154171 - 2²⁶ = 1351576045307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1351643154101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225273859026 + ... + 225273859031.

It is an arithmetic number, because the mean of its divisors is an integer number (450547718058).

Almost surely, 2^{1351643154171} is an apocalyptic number.

1351643154171 is a deficient number, since it is larger than the sum of its proper divisors (450547718061).

1351643154171 is an equidigital number, since it uses as much as digits as its factorization.

1351643154171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450547718060.

The product of its digits is 151200, while the sum is 42.

The spelling of 1351643154171 in words is "one trillion, three hundred fifty-one billion, six hundred forty-three million, one hundred fifty-four thousand, one hundred seventy-one".