143654161 has 4 divisors (see below), whose sum is σ = 164176192. Its totient is φ = 123132132.

The previous prime is 143654141. The next prime is 143654171. The reversal of 143654161 is 161456341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143654161 - 2⁵ = 143654129 is a prime.

It is a super-2 number, since 2×143654161² = 41273035945227842, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143654101) 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, 10261005 + ... + 10261018.

It is an arithmetic number, because the mean of its divisors is an integer number (41044048).

Almost surely, 2^143654161 is an apocalyptic number.

It is an amenable number.

143654161 is a deficient number, since it is larger than the sum of its proper divisors (20522031).

143654161 is an equidigital number, since it uses as much as digits as its factorization.

143654161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20522030.

The product of its digits is 8640, while the sum is 31.

The square root of 143654161 is about 11985.5813793074. The cubic root of 143654161 is about 523.7283338706.

The spelling of 143654161 in words is "one hundred forty-three million, six hundred fifty-four thousand, one hundred sixty-one".