142525671761 has 4 divisors (see below), whose sum is σ = 155482551024. Its totient is φ = 129568792500.

The previous prime is 142525671721. The next prime is 142525671763. The reversal of 142525671761 is 167176525241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 167176525241 = 11 ⋅15197865931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142525671761 is a prime.

It is a super-2 number, since 2×142525671761² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142525671763) 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, 6478439615 + ... + 6478439636.

It is an arithmetic number, because the mean of its divisors is an integer number (38870637756).

Almost surely, 2^142525671761 is an apocalyptic number.

142525671761 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142525671761 is a deficient number, since it is larger than the sum of its proper divisors (12956879263).

142525671761 is a wasteful number, since it uses less digits than its factorization.

142525671761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12956879262.

The product of its digits is 705600, while the sum is 47.

The spelling of 142525671761 in words is "one hundred forty-two billion, five hundred twenty-five million, six hundred seventy-one thousand, seven hundred sixty-one".