135699429 has 4 divisors (see below), whose sum is σ = 180932576. Its totient is φ = 90466284.

The previous prime is 135699427. The next prime is 135699449. The reversal of 135699429 is 924996531.

135699429 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 135699429 - 2¹ = 135699427 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135699427) 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, 22616569 + ... + 22616574.

It is an arithmetic number, because the mean of its divisors is an integer number (45233144).

Almost surely, 2^135699429 is an apocalyptic number.

It is an amenable number.

135699429 is a deficient number, since it is larger than the sum of its proper divisors (45233147).

135699429 is an equidigital number, since it uses as much as digits as its factorization.

135699429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45233146.

The product of its digits is 524880, while the sum is 48.

The square root of 135699429 is about 11649.0097862436. The cubic root of 135699429 is about 513.8771893401.

The spelling of 135699429 in words is "one hundred thirty-five million, six hundred ninety-nine thousand, four hundred twenty-nine".