71140126429 has 4 divisors (see below), whose sum is σ = 71140662076. Its totient is φ = 71139590784.

The previous prime is 71140126373. The next prime is 71140126451. The reversal of 71140126429 is 92462104117.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 16887002500 + 54253123929 = 129950^2 + 232923^2 .

It is a cyclic number.

It is not a de Polignac number, because 71140126429 - 2¹⁷ = 71139995357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71140826429) 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, 97507 + ... + 389599.

It is an arithmetic number, because the mean of its divisors is an integer number (17785165519).

Almost surely, 2^71140126429 is an apocalyptic number.

It is an amenable number.

71140126429 is a deficient number, since it is larger than the sum of its proper divisors (535647).

71140126429 is a wasteful number, since it uses less digits than its factorization.

71140126429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535646.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 71140126429 in words is "seventy-one billion, one hundred forty million, one hundred twenty-six thousand, four hundred twenty-nine".