142432561507 has 4 divisors (see below), whose sum is σ = 150810947496. Its totient is φ = 134054175520.

The previous prime is 142432561501. The next prime is 142432561559. The reversal of 142432561507 is 705165234241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 705165234241 = 13 ⋅54243479557.

It is a cyclic number.

It is not a de Polignac number, because 142432561507 - 2⁷ = 142432561379 is a prime.

It is a super-2 number, since 2×142432561507² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142432561507.

It is not an unprimeable number, because it can be changed into a prime (142432561501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4189192969 + ... + 4189193002.

It is an arithmetic number, because the mean of its divisors is an integer number (37702736874).

Almost surely, 2^142432561507 is an apocalyptic number.

142432561507 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

142432561507 is a deficient number, since it is larger than the sum of its proper divisors (8378385989).

142432561507 is an equidigital number, since it uses as much as digits as its factorization.

142432561507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8378385988.

The product of its (nonzero) digits is 201600, while the sum is 40.

Adding to 142432561507 its reverse (705165234241), we get a palindrome (847597795748).

The spelling of 142432561507 in words is "one hundred forty-two billion, four hundred thirty-two million, five hundred sixty-one thousand, five hundred seven".