143523450461 has 2 divisors, whose sum is σ = 143523450462. Its totient is φ = 143523450460.

The previous prime is 143523450449. The next prime is 143523450463. The reversal of 143523450461 is 164054325341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133141063225 + 10382387236 = 364885^2 + 101894^2 .

It is a cyclic number.

It is not a de Polignac number, because 143523450461 - 2⁶ = 143523450397 is a prime.

It is a super-2 number, since 2×143523450461² (a number of 23 digits) contains 22 as substring.

Together with 143523450463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143523450463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71761725230 + 71761725231.

It is an arithmetic number, because the mean of its divisors is an integer number (71761725231).

Almost surely, 2^143523450461 is an apocalyptic number.

It is an amenable number.

143523450461 is a deficient number, since it is larger than the sum of its proper divisors (1).

143523450461 is an equidigital number, since it uses as much as digits as its factorization.

143523450461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 143523450461 in words is "one hundred forty-three billion, five hundred twenty-three million, four hundred fifty thousand, four hundred sixty-one".