143971801 has 2 divisors, whose sum is σ = 143971802. Its totient is φ = 143971800.

The previous prime is 143971771. The next prime is 143971813. The reversal of 143971801 is 108179341.

143971801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140067225 + 3904576 = 11835^2 + 1976^2 .

It is a cyclic number.

It is not a de Polignac number, because 143971801 - 2⁵ = 143971769 is a prime.

It is equal to p_8123947 and since 143971801 and 8123947 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (143971871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71985900 + 71985901.

It is an arithmetic number, because the mean of its divisors is an integer number (71985901).

Almost surely, 2^143971801 is an apocalyptic number.

It is an amenable number.

143971801 is a deficient number, since it is larger than the sum of its proper divisors (1).

143971801 is an equidigital number, since it uses as much as digits as its factorization.

143971801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 143971801 is about 11998.8249841391. The cubic root of 143971801 is about 524.1140625866.

The spelling of 143971801 in words is "one hundred forty-three million, nine hundred seventy-one thousand, eight hundred one".