135525415 has 4 divisors (see below), whose sum is σ = 162630504. Its totient is φ = 108420328.

The previous prime is 135525391. The next prime is 135525421. The reversal of 135525415 is 514525531.

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 135525415 - 2⁷ = 135525287 is a prime.

It is a super-2 number, since 2×135525415² = 36734276221844450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13552537 + ... + 13552546.

It is an arithmetic number, because the mean of its divisors is an integer number (40657626).

Almost surely, 2^135525415 is an apocalyptic number.

135525415 is a deficient number, since it is larger than the sum of its proper divisors (27105089).

135525415 is an equidigital number, since it uses as much as digits as its factorization.

135525415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27105088.

The product of its digits is 15000, while the sum is 31.

The square root of 135525415 is about 11641.5383433634. The cubic root of 135525415 is about 513.6574387819.

The spelling of 135525415 in words is "one hundred thirty-five million, five hundred twenty-five thousand, four hundred fifteen".