135415511 has 16 divisors (see below), whose sum is σ = 171149568. Its totient is φ = 104068800.

The previous prime is 135415499. The next prime is 135415519. The reversal of 135415511 is 115514531.

It is not a de Polignac number, because 135415511 - 2¹⁸ = 135153367 is a prime.

It is a super-2 number, since 2×135415511² = 36674721238782242, 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 (135415519) 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, 6425 + ... + 17666.

It is an arithmetic number, because the mean of its divisors is an integer number (10696848).

Almost surely, 2^135415511 is an apocalyptic number.

135415511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135415511 is a deficient number, since it is larger than the sum of its proper divisors (35734057).

135415511 is a wasteful number, since it uses less digits than its factorization.

135415511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24182.

The product of its digits is 1500, while the sum is 26.

The square root of 135415511 is about 11636.8170476295. The cubic root of 135415511 is about 513.5185514887.

The spelling of 135415511 in words is "one hundred thirty-five million, four hundred fifteen thousand, five hundred eleven".