143204497 has 2 divisors, whose sum is σ = 143204498. Its totient is φ = 143204496.

The previous prime is 143204489. The next prime is 143204507. The reversal of 143204497 is 794402341.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108347281 + 34857216 = 10409^2 + 5904^2 .

It is a cyclic number.

It is not a de Polignac number, because 143204497 - 2³ = 143204489 is a prime.

It is a super-2 number, since 2×143204497² = 41015055922046018, which contains 22 as substring.

It is equal to p_8082943 and since 143204497 and 8082943 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 (143204437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71602248 + 71602249.

It is an arithmetic number, because the mean of its divisors is an integer number (71602249).

Almost surely, 2^143204497 is an apocalyptic number.

It is an amenable number.

143204497 is a deficient number, since it is larger than the sum of its proper divisors (1).

143204497 is an equidigital number, since it uses as much as digits as its factorization.

143204497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 143204497 is about 11966.8081375110. The cubic root of 143204497 is about 523.1813073048.

The spelling of 143204497 in words is "one hundred forty-three million, two hundred four thousand, four hundred ninety-seven".