135816541 has 32 divisors (see below), whose sum is σ = 176486400. Its totient is φ = 101787840.

The previous prime is 135816523. The next prime is 135816547. The reversal of 135816541 is 145618531.

It is not a de Polignac number, because 135816541 - 2⁵ = 135816509 is a prime.

It is a super-2 number, since 2×135816541² = 36892265618409362, 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 = 135816497 and 135816506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135816547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87946 + ... + 89476.

It is an arithmetic number, because the mean of its divisors is an integer number (5515200).

Almost surely, 2^135816541 is an apocalyptic number.

It is an amenable number.

135816541 is a deficient number, since it is larger than the sum of its proper divisors (40669859).

135816541 is a wasteful number, since it uses less digits than its factorization.

135816541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609.

The product of its digits is 14400, while the sum is 34.

The square root of 135816541 is about 11654.0353955186. The cubic root of 135816541 is about 514.0249764544.

The spelling of 135816541 in words is "one hundred thirty-five million, eight hundred sixteen thousand, five hundred forty-one".