142451066531 has 2 divisors, whose sum is σ = 142451066532. Its totient is φ = 142451066530.

The previous prime is 142451066423. The next prime is 142451066557. The reversal of 142451066531 is 135660154241.

142451066531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142451066531 is a prime.

It is a super-2 number, since 2×142451066531² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142451066561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71225533265 + 71225533266.

It is an arithmetic number, because the mean of its divisors is an integer number (71225533266).

Almost surely, 2^142451066531 is an apocalyptic number.

142451066531 is a deficient number, since it is larger than the sum of its proper divisors (1).

142451066531 is an equidigital number, since it uses as much as digits as its factorization.

142451066531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 142451066531 in words is "one hundred forty-two billion, four hundred fifty-one million, sixty-six thousand, five hundred thirty-one".