135420275 has 6 divisors (see below), whose sum is σ = 167921172. Its totient is φ = 108336200.

The previous prime is 135420269. The next prime is 135420319. The reversal of 135420275 is 572024531.

It is a happy number.

It is not a de Polignac number, because 135420275 - 2¹⁸ = 135158131 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2708381 + ... + 2708430.

It is an arithmetic number, because the mean of its divisors is an integer number (27986862).

Almost surely, 2^135420275 is an apocalyptic number.

135420275 is a deficient number, since it is larger than the sum of its proper divisors (32500897).

135420275 is an equidigital number, since it uses as much as digits as its factorization.

135420275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416821 (or 5416816 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 135420275 is about 11637.0217409782. The cubic root of 135420275 is about 513.5245733830.

The spelling of 135420275 in words is "one hundred thirty-five million, four hundred twenty thousand, two hundred seventy-five".