135416531 has 4 divisors (see below), whose sum is σ = 135779952. Its totient is φ = 135053112.

The previous prime is 135416513. The next prime is 135416539. The reversal of 135416531 is 135614531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135416531 - 2¹⁴ = 135400147 is a prime.

It is a super-2 number, since 2×135416531² = 36675273736147922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135416494 and 135416503.

It is not an unprimeable number, because it can be changed into a prime (135416539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181151 + ... + 181896.

It is an arithmetic number, because the mean of its divisors is an integer number (33944988).

Almost surely, 2^135416531 is an apocalyptic number.

135416531 is a deficient number, since it is larger than the sum of its proper divisors (363421).

135416531 is an equidigital number, since it uses as much as digits as its factorization.

135416531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363420.

The product of its digits is 5400, while the sum is 29.

The square root of 135416531 is about 11636.8608739642. The cubic root of 135416531 is about 513.5198408230.

The spelling of 135416531 in words is "one hundred thirty-five million, four hundred sixteen thousand, five hundred thirty-one".