143401874221687 has 8 divisors (see below), whose sum is σ = 148029440458880. Its totient is φ = 138774414192480.

The previous prime is 143401874221673. The next prime is 143401874221691. The reversal of 143401874221687 is 786122478104341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143401874221687 is a prime.

It is a super-2 number, since 2×143401874221687² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143401874221657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23803512 + ... + 29213197.

It is an arithmetic number, because the mean of its divisors is an integer number (18503680057360).

Almost surely, 2^{143401874221687} is an apocalyptic number.

143401874221687 is a deficient number, since it is larger than the sum of its proper divisors (4627566237193).

143401874221687 is an equidigital number, since it uses as much as digits as its factorization.

143401874221687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53103993.

The product of its (nonzero) digits is 14450688, while the sum is 58.

The spelling of 143401874221687 in words is "one hundred forty-three trillion, four hundred one billion, eight hundred seventy-four million, two hundred twenty-one thousand, six hundred eighty-seven".