143897201 has 4 divisors (see below), whose sum is σ = 164453952. Its totient is φ = 123340452.

The previous prime is 143897189. The next prime is 143897209. The reversal of 143897201 is 102798341.

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, and also an emirpimes, since its reverse is a distinct semiprime: 102798341 = 19 ⋅5410439.

It is a cyclic number.

It is not a de Polignac number, because 143897201 - 2⁶ = 143897137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143897209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10278365 + ... + 10278378.

It is an arithmetic number, because the mean of its divisors is an integer number (41113488).

Almost surely, 2^143897201 is an apocalyptic number.

It is an amenable number.

143897201 is a deficient number, since it is larger than the sum of its proper divisors (20556751).

143897201 is an equidigital number, since it uses as much as digits as its factorization.

143897201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20556750.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 143897201 is about 11995.7159436192. The cubic root of 143897201 is about 524.0235224858.

The spelling of 143897201 in words is "one hundred forty-three million, eight hundred ninety-seven thousand, two hundred one".