135413431 has 4 divisors (see below), whose sum is σ = 135482200. Its totient is φ = 135344664.

The previous prime is 135413429. The next prime is 135413459. The reversal of 135413431 is 134314531.

135413431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134314531 = 13 ⋅10331887.

It is a cyclic number.

It is not a de Polignac number, because 135413431 - 2¹ = 135413429 is a prime.

It is a super-2 number, since 2×135413431² = 36673594590383522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135413396 and 135413405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135413471) 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, 31341 + ... + 35398.

It is an arithmetic number, because the mean of its divisors is an integer number (33870550).

Almost surely, 2^135413431 is an apocalyptic number.

135413431 is a deficient number, since it is larger than the sum of its proper divisors (68769).

135413431 is an equidigital number, since it uses as much as digits as its factorization.

135413431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68768.

The product of its digits is 2160, while the sum is 25.

The square root of 135413431 is about 11636.7276757686. The cubic root of 135413431 is about 513.5159222378.

Adding to 135413431 its reverse (134314531), we get a palindrome (269727962).

The spelling of 135413431 in words is "one hundred thirty-five million, four hundred thirteen thousand, four hundred thirty-one".