4142505431 has 4 divisors (see below), whose sum is σ = 4175123712. Its totient is φ = 4109887152.

The previous prime is 4142505427. The next prime is 4142505443. The reversal of 4142505431 is 1345052414.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4142505431 - 2² = 4142505427 is a prime.

It is a super-2 number, since 2×4142505431² = 34320702491728991522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4142505394 and 4142505403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4142505401) 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, 16308950 + ... + 16309203.

It is an arithmetic number, because the mean of its divisors is an integer number (1043780928).

Almost surely, 2^4142505431 is an apocalyptic number.

4142505431 is a deficient number, since it is larger than the sum of its proper divisors (32618281).

4142505431 is a wasteful number, since it uses less digits than its factorization.

4142505431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32618280.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 4142505431 is about 64362.2982109868. The cubic root of 4142505431 is about 1606.0326207545.

Adding to 4142505431 its reverse (1345052414), we get a palindrome (5487557845).

The spelling of 4142505431 in words is "four billion, one hundred forty-two million, five hundred five thousand, four hundred thirty-one".