135469131 has 16 divisors (see below), whose sum is σ = 206592000. Its totient is φ = 77349888.

The previous prime is 135469129. The next prime is 135469153. The reversal of 135469131 is 131964531.

It is not a de Polignac number, because 135469131 - 2¹ = 135469129 is a prime.

It is a super-2 number, since 2×135469131² = 36703770907790322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135469092 and 135469101.

It is not an unprimeable number, because it can be changed into a prime (135469111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49035 + ... + 51723.

It is an arithmetic number, because the mean of its divisors is an integer number (12912000).

Almost surely, 2^135469131 is an apocalyptic number.

135469131 is a deficient number, since it is larger than the sum of its proper divisors (71122869).

135469131 is a wasteful number, since it uses less digits than its factorization.

135469131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5098.

The product of its digits is 9720, while the sum is 33.

The square root of 135469131 is about 11639.1207142120. The cubic root of 135469131 is about 513.5863212516.

The spelling of 135469131 in words is "one hundred thirty-five million, four hundred sixty-nine thousand, one hundred thirty-one".