145143160781 has 2 divisors, whose sum is σ = 145143160782. Its totient is φ = 145143160780.

The previous prime is 145143160769. The next prime is 145143160793. The reversal of 145143160781 is 187061341541.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (145143160769) and next prime (145143160793).

It can be written as a sum of positive squares in only one way, i.e., 84526258756 + 60616902025 = 290734^2 + 246205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145143160781 is a prime.

It is a super-2 number, since 2×145143160781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145143160751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72571580390 + 72571580391.

It is an arithmetic number, because the mean of its divisors is an integer number (72571580391).

Almost surely, 2^145143160781 is an apocalyptic number.

It is an amenable number.

145143160781 is a deficient number, since it is larger than the sum of its proper divisors (1).

145143160781 is an equidigital number, since it uses as much as digits as its factorization.

145143160781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 145143160781 in words is "one hundred forty-five billion, one hundred forty-three million, one hundred sixty thousand, seven hundred eighty-one".