143375406761 has 2 divisors, whose sum is σ = 143375406762. Its totient is φ = 143375406760.

The previous prime is 143375406749. The next prime is 143375406787. The reversal of 143375406761 is 167604573341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140610750361 + 2764656400 = 374981^2 + 52580^2 .

It is a cyclic number.

It is not a de Polignac number, because 143375406761 - 2⁶ = 143375406697 is a prime.

It is a super-2 number, since 2×143375406761² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143375406791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71687703380 + 71687703381.

It is an arithmetic number, because the mean of its divisors is an integer number (71687703381).

Almost surely, 2^143375406761 is an apocalyptic number.

It is an amenable number.

143375406761 is a deficient number, since it is larger than the sum of its proper divisors (1).

143375406761 is an equidigital number, since it uses as much as digits as its factorization.

143375406761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 143375406761 in words is "one hundred forty-three billion, three hundred seventy-five million, four hundred six thousand, seven hundred sixty-one".