135325431 has 8 divisors (see below), whose sum is σ = 200482160. Its totient is φ = 90216936.

The previous prime is 135325387. The next prime is 135325433. The reversal of 135325431 is 134523531.

135325431 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 135325431 - 2⁹ = 135324919 is a prime.

It is a super-2 number, since 2×135325431² = 36625944550671522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5012053 = 135325431 / (1 + 3 + 5 + 3 + 2 + 5 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135325395 and 135325404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135325433) 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, 2506000 + ... + 2506053.

It is an arithmetic number, because the mean of its divisors is an integer number (25060270).

Almost surely, 2^135325431 is an apocalyptic number.

135325431 is a deficient number, since it is larger than the sum of its proper divisors (65156729).

135325431 is an equidigital number, since it uses as much as digits as its factorization.

135325431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5012062 (or 5012056 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 135325431 is about 11632.9459295571. The cubic root of 135325431 is about 513.4046600257.

Adding to 135325431 its reverse (134523531), we get a palindrome (269848962).

The spelling of 135325431 in words is "one hundred thirty-five million, three hundred twenty-five thousand, four hundred thirty-one".