143691161187 has 16 divisors (see below), whose sum is σ = 218987206400. Its totient is φ = 82098267552.

The previous prime is 143691161171. The next prime is 143691161269. The reversal of 143691161187 is 781161196341.

It is not a de Polignac number, because 143691161187 - 2⁴ = 143691161171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143691161287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294673 + ... + 611730.

It is an arithmetic number, because the mean of its divisors is an integer number (13686700400).

Almost surely, 2^143691161187 is an apocalyptic number.

143691161187 is a deficient number, since it is larger than the sum of its proper divisors (75296045213).

143691161187 is an equidigital number, since it uses as much as digits as its factorization.

143691161187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913962.

The product of its digits is 217728, while the sum is 48.

The spelling of 143691161187 in words is "one hundred forty-three billion, six hundred ninety-one million, one hundred sixty-one thousand, one hundred eighty-seven".