135552131 has 8 divisors (see below), whose sum is σ = 159250224. Its totient is φ = 113749920.

The previous prime is 135552121. The next prime is 135552139. The reversal of 135552131 is 131255531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135552131 - 2¹⁰ = 135551107 is a prime.

It is a super-2 number, since 2×135552131² = 36748760437282322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135552131.

It is not an unprimeable number, because it can be changed into a prime (135552139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473816 + ... + 474101.

It is an arithmetic number, because the mean of its divisors is an integer number (19906278).

Almost surely, 2^135552131 is an apocalyptic number.

135552131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135552131 is a deficient number, since it is larger than the sum of its proper divisors (23698093).

135552131 is a wasteful number, since it uses less digits than its factorization.

135552131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947941.

The product of its digits is 2250, while the sum is 26.

The square root of 135552131 is about 11642.6857296759. The cubic root of 135552131 is about 513.6911888366.

The spelling of 135552131 in words is "one hundred thirty-five million, five hundred fifty-two thousand, one hundred thirty-one".