842126137 has 4 divisors (see below), whose sum is σ = 842324560. Its totient is φ = 841927716.

The previous prime is 842126107. The next prime is 842126141. The reversal of 842126137 is 731621248.

842126137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 842126137 - 2⁷ = 842126009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842126107) 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, 92703 + ... + 101380.

It is an arithmetic number, because the mean of its divisors is an integer number (210581140).

Almost surely, 2^842126137 is an apocalyptic number.

It is an amenable number.

842126137 is a deficient number, since it is larger than the sum of its proper divisors (198423).

842126137 is a wasteful number, since it uses less digits than its factorization.

842126137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198422.

The product of its digits is 16128, while the sum is 34.

The square root of 842126137 is about 29019.4096597433. The cubic root of 842126137 is about 944.3341939087.

The spelling of 842126137 in words is "eight hundred forty-two million, one hundred twenty-six thousand, one hundred thirty-seven".