143875997 has 2 divisors, whose sum is σ = 143875998. Its totient is φ = 143875996.

The previous prime is 143875937. The next prime is 143876009. The reversal of 143875997 is 799578341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143736121 + 139876 = 11989^2 + 374^2 .

It is a cyclic number.

It is not a de Polignac number, because 143875997 - 2⁶ = 143875933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143875937) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71937998 + 71937999.

It is an arithmetic number, because the mean of its divisors is an integer number (71937999).

Almost surely, 2^143875997 is an apocalyptic number.

It is an amenable number.

143875997 is a deficient number, since it is larger than the sum of its proper divisors (1).

143875997 is an equidigital number, since it uses as much as digits as its factorization.

143875997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 53.

The square root of 143875997 is about 11994.8320955318. The cubic root of 143875997 is about 523.9977820255.

The spelling of 143875997 in words is "one hundred forty-three million, eight hundred seventy-five thousand, nine hundred ninety-seven".