135125087 has 4 divisors (see below), whose sum is σ = 135501840. Its totient is φ = 134748336.

The previous prime is 135125041. The next prime is 135125099. The reversal of 135125087 is 780521531.

135125087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 135125087 - 2⁸ = 135124831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135125387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187838 + ... + 188555.

It is an arithmetic number, because the mean of its divisors is an integer number (33875460).

Almost surely, 2^135125087 is an apocalyptic number.

135125087 is a deficient number, since it is larger than the sum of its proper divisors (376753).

135125087 is an equidigital number, since it uses as much as digits as its factorization.

135125087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376752.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 135125087 is about 11624.3316797139. The cubic root of 135125087 is about 513.1511763971.

The spelling of 135125087 in words is "one hundred thirty-five million, one hundred twenty-five thousand, eighty-seven".