135903469 has 4 divisors (see below), whose sum is σ = 146357596. Its totient is φ = 125449344.

The previous prime is 135903451. The next prime is 135903503. The reversal of 135903469 is 964309531.

135903469 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: 964309531 = 191 ⋅5048741.

It can be written as a sum of positive squares in 2 ways, for example, as 70778569 + 65124900 = 8413^2 + 8070^2 .

It is a cyclic number.

It is not a de Polignac number, because 135903469 - 2¹⁵ = 135870701 is a prime.

It is a super-2 number, since 2×135903469² = 36939505772467922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135903419) 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, 5227044 + ... + 5227069.

It is an arithmetic number, because the mean of its divisors is an integer number (36589399).

Almost surely, 2^135903469 is an apocalyptic number.

It is an amenable number.

135903469 is a deficient number, since it is larger than the sum of its proper divisors (10454127).

135903469 is a wasteful number, since it uses less digits than its factorization.

135903469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10454126.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 135903469 is about 11657.7643225449. The cubic root of 135903469 is about 514.1346185574.

The spelling of 135903469 in words is "one hundred thirty-five million, nine hundred three thousand, four hundred sixty-nine".