134404431254525 has 12 divisors (see below), whose sum is σ = 166661861762100. Its totient is φ = 107523308225280.

The previous prime is 134404431254519. The next prime is 134404431254557. The reversal of 134404431254525 is 525452134404431.

It can be written as a sum of positive squares in 6 ways, for example, as 6967899943684 + 127436531310841 = 2639678^2 + 11288779^2 .

It is not a de Polignac number, because 134404431254525 - 2¹⁰ = 134404431253501 is a prime.

It is a super-2 number, since 2×134404431254525² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 134404431254525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6142271 + ... + 17508179.

It is an arithmetic number, because the mean of its divisors is an integer number (13888488480175).

Almost surely, 2^{134404431254525} is an apocalyptic number.

It is an amenable number.

134404431254525 is a deficient number, since it is larger than the sum of its proper divisors (32257430507575).

134404431254525 is a wasteful number, since it uses less digits than its factorization.

134404431254525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11838928 (or 11838923 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 47.

Adding to 134404431254525 its reverse (525452134404431), we get a palindrome (659856565658956).

The spelling of 134404431254525 in words is "one hundred thirty-four trillion, four hundred four billion, four hundred thirty-one million, two hundred fifty-four thousand, five hundred twenty-five".