134542187439 has 16 divisors (see below), whose sum is σ = 195906627840. Its totient is φ = 81453677760.

The previous prime is 134542187431. The next prime is 134542187443. The reversal of 134542187439 is 934781245431.

It is a happy number.

It is not a de Polignac number, because 134542187439 - 2³ = 134542187431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 134542187391 and 134542187400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134542187431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2144659 + ... + 2206500.

It is an arithmetic number, because the mean of its divisors is an integer number (12244164240).

Almost surely, 2^134542187439 is an apocalyptic number.

134542187439 is a deficient number, since it is larger than the sum of its proper divisors (61364440401).

134542187439 is a wasteful number, since it uses less digits than its factorization.

134542187439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4352110.

The product of its digits is 2903040, while the sum is 51.

The spelling of 134542187439 in words is "one hundred thirty-four billion, five hundred forty-two million, one hundred eighty-seven thousand, four hundred thirty-nine".