143461436044457 has 2 divisors, whose sum is σ = 143461436044458. Its totient is φ = 143461436044456.

The previous prime is 143461436044439. The next prime is 143461436044481. The reversal of 143461436044457 is 754440634164341.

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., 73602998649961 + 69858437394496 = 8579219^2 + 8358136^2 .

It is a cyclic number.

It is not a de Polignac number, because 143461436044457 - 2⁶ = 143461436044393 is a prime.

It is a super-2 number, since 2×143461436044457² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143461436044057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71730718022228 + 71730718022229.

It is an arithmetic number, because the mean of its divisors is an integer number (71730718022229).

Almost surely, 2^{143461436044457} is an apocalyptic number.

It is an amenable number.

143461436044457 is a deficient number, since it is larger than the sum of its proper divisors (1).

143461436044457 is an equidigital number, since it uses as much as digits as its factorization.

143461436044457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46448640, while the sum is 56.

The spelling of 143461436044457 in words is "one hundred forty-three trillion, four hundred sixty-one billion, four hundred thirty-six million, forty-four thousand, four hundred fifty-seven".