4142097731 has 4 divisors (see below), whose sum is σ = 4142299464. Its totient is φ = 4141896000.

The previous prime is 4142097721. The next prime is 4142097737. The reversal of 4142097731 is 1377902414.

It is a happy number.

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 4142097731 - 2³⁰ = 3068355907 is a prime.

It is a super-2 number, since 2×4142097731² = 34313947226310696722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4142097737) 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, 66065 + ... + 112466.

It is an arithmetic number, because the mean of its divisors is an integer number (1035574866).

Almost surely, 2^4142097731 is an apocalyptic number.

4142097731 is a deficient number, since it is larger than the sum of its proper divisors (201733).

4142097731 is a wasteful number, since it uses less digits than its factorization.

4142097731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201732.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 4142097731 is about 64359.1309061892. The cubic root of 4142097731 is about 1605.9799311449.

The spelling of 4142097731 in words is "four billion, one hundred forty-two million, ninety-seven thousand, seven hundred thirty-one".