135252929 has 4 divisors (see below), whose sum is σ = 154574784. Its totient is φ = 115931076.

The previous prime is 135252919. The next prime is 135252947. The reversal of 135252929 is 929252531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 929252531 = 97 ⋅9579923.

It is a cyclic number.

It is not a de Polignac number, because 135252929 - 2⁴ = 135252913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135252892 and 135252901.

It is not an unprimeable number, because it can be changed into a prime (135252919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9660917 + ... + 9660930.

It is an arithmetic number, because the mean of its divisors is an integer number (38643696).

Almost surely, 2^135252929 is an apocalyptic number.

It is an amenable number.

135252929 is a deficient number, since it is larger than the sum of its proper divisors (19321855).

135252929 is an equidigital number, since it uses as much as digits as its factorization.

135252929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19321854.

The product of its digits is 48600, while the sum is 38.

The square root of 135252929 is about 11629.8292764769. The cubic root of 135252929 is about 513.3129563602.

The spelling of 135252929 in words is "one hundred thirty-five million, two hundred fifty-two thousand, nine hundred twenty-nine".