135015051 has 4 divisors (see below), whose sum is σ = 180020072. Its totient is φ = 90010032.

The previous prime is 135015031. The next prime is 135015079. The reversal of 135015051 is 150510531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150510531 = 3 ⋅50170177.

It is not a de Polignac number, because 135015051 - 2⁶ = 135014987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135015031) 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, 22502506 + ... + 22502511.

It is an arithmetic number, because the mean of its divisors is an integer number (45005018).

Almost surely, 2^135015051 is an apocalyptic number.

135015051 is a deficient number, since it is larger than the sum of its proper divisors (45005021).

135015051 is an equidigital number, since it uses as much as digits as its factorization.

135015051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45005020.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 135015051 is about 11619.5977124856. The cubic root of 135015051 is about 513.0118476264.

Adding to 135015051 its reverse (150510531), we get a palindrome (285525582).

The spelling of 135015051 in words is "one hundred thirty-five million, fifteen thousand, fifty-one".