135672421039 has 4 divisors (see below), whose sum is σ = 135744245280. Its totient is φ = 135600596800.

The previous prime is 135672421009. The next prime is 135672421043. The reversal of 135672421039 is 930124276531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930124276531 = 1663 ⋅559305037.

It is a cyclic number.

It is not a de Polignac number, because 135672421039 - 2⁵ = 135672421007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135672420986 and 135672421004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135672421009) 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, 35909287 + ... + 35913064.

It is an arithmetic number, because the mean of its divisors is an integer number (33936061320).

Almost surely, 2^135672421039 is an apocalyptic number.

135672421039 is a deficient number, since it is larger than the sum of its proper divisors (71824241).

135672421039 is an equidigital number, since it uses as much as digits as its factorization.

135672421039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71824240.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 135672421039 in words is "one hundred thirty-five billion, six hundred seventy-two million, four hundred twenty-one thousand, thirty-nine".