142432561501 has 2 divisors, whose sum is σ = 142432561502. Its totient is φ = 142432561500.

The previous prime is 142432561489. The next prime is 142432561559. The reversal of 142432561501 is 105165234241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119404802500 + 23027759001 = 345550^2 + 151749^2 .

It is a cyclic number.

It is not a de Polignac number, because 142432561501 - 2⁷ = 142432561373 is a prime.

It is a super-2 number, since 2×142432561501² (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 (122432561501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71216280750 + 71216280751.

It is an arithmetic number, because the mean of its divisors is an integer number (71216280751).

Almost surely, 2^142432561501 is an apocalyptic number.

It is an amenable number.

142432561501 is a deficient number, since it is larger than the sum of its proper divisors (1).

142432561501 is an equidigital number, since it uses as much as digits as its factorization.

142432561501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 142432561501 its reverse (105165234241), we get a palindrome (247597795742).

The spelling of 142432561501 in words is "one hundred forty-two billion, four hundred thirty-two million, five hundred sixty-one thousand, five hundred one".