135357172319 has 16 divisors (see below), whose sum is σ = 150893894880. Its totient is φ = 120664857600.

The previous prime is 135357172297. The next prime is 135357172351. The reversal of 135357172319 is 913271753531.

It is a happy number.

It is not a de Polignac number, because 135357172319 - 2¹² = 135357168223 is a prime.

It is a super-2 number, since 2×135357172319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135357172519) 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, 1606547 + ... + 1688699.

It is an arithmetic number, because the mean of its divisors is an integer number (9430868430).

Almost surely, 2^135357172319 is an apocalyptic number.

135357172319 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

135357172319 is a deficient number, since it is larger than the sum of its proper divisors (15536722561).

135357172319 is a wasteful number, since it uses less digits than its factorization.

135357172319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87290.

The product of its digits is 595350, while the sum is 47.

The spelling of 135357172319 in words is "one hundred thirty-five billion, three hundred fifty-seven million, one hundred seventy-two thousand, three hundred nineteen".