135847172157 has 8 divisors (see below), whose sum is σ = 181139343840. Its totient is φ = 90559890960.

The previous prime is 135847172113. The next prime is 135847172179. The reversal of 135847172157 is 751271748531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135847172157 - 2¹⁰ = 135847171133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135847172107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1157307 + ... + 1269272.

It is an arithmetic number, because the mean of its divisors is an integer number (22642417980).

Almost surely, 2^135847172157 is an apocalyptic number.

It is an amenable number.

135847172157 is a deficient number, since it is larger than the sum of its proper divisors (45292171683).

135847172157 is a wasteful number, since it uses less digits than its factorization.

135847172157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445243.

The product of its digits is 1646400, while the sum is 51.

The spelling of 135847172157 in words is "one hundred thirty-five billion, eight hundred forty-seven million, one hundred seventy-two thousand, one hundred fifty-seven".