135174831 has 16 divisors (see below), whose sum is σ = 198531840. Its totient is φ = 81126720.

The previous prime is 135174821. The next prime is 135174833. The reversal of 135174831 is 138471531.

135174831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135174831 - 2¹³ = 135166639 is a prime.

It is a super-2 number, since 2×135174831² = 36544469871757122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 135174792 and 135174801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135174833) 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, 16486 + ... + 23283.

It is an arithmetic number, because the mean of its divisors is an integer number (12408240).

Almost surely, 2^135174831 is an apocalyptic number.

135174831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135174831 is a deficient number, since it is larger than the sum of its proper divisors (63357009).

135174831 is a wasteful number, since it uses less digits than its factorization.

135174831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39886.

The product of its digits is 10080, while the sum is 33.

The square root of 135174831 is about 11626.4711327212. The cubic root of 135174831 is about 513.2141379611.

The spelling of 135174831 in words is "one hundred thirty-five million, one hundred seventy-four thousand, eight hundred thirty-one".