143490154421 has 2 divisors, whose sum is σ = 143490154422. Its totient is φ = 143490154420.

The previous prime is 143490154417. The next prime is 143490154427. The reversal of 143490154421 is 124451094341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79690467025 + 63799687396 = 282295^2 + 252586^2 .

It is a cyclic number.

It is not a de Polignac number, because 143490154421 - 2² = 143490154417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143490154427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71745077210 + 71745077211.

It is an arithmetic number, because the mean of its divisors is an integer number (71745077211).

Almost surely, 2^143490154421 is an apocalyptic number.

It is an amenable number.

143490154421 is a deficient number, since it is larger than the sum of its proper divisors (1).

143490154421 is an equidigital number, since it uses as much as digits as its factorization.

143490154421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 143490154421 in words is "one hundred forty-three billion, four hundred ninety million, one hundred fifty-four thousand, four hundred twenty-one".