135051473 has 4 divisors (see below), whose sum is σ = 137599668. Its totient is φ = 132503280.

The previous prime is 135051467. The next prime is 135051479. The reversal of 135051473 is 374150531.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (135051467) and next prime (135051479).

It can be written as a sum of positive squares in 2 ways, for example, as 102981904 + 32069569 = 10148^2 + 5663^2 .

It is a cyclic number.

It is not a de Polignac number, because 135051473 - 2⁴ = 135051457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135051479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1274018 + ... + 1274123.

It is an arithmetic number, because the mean of its divisors is an integer number (34399917).

Almost surely, 2^135051473 is an apocalyptic number.

It is an amenable number.

135051473 is a deficient number, since it is larger than the sum of its proper divisors (2548195).

135051473 is an equidigital number, since it uses as much as digits as its factorization.

135051473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548194.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 135051473 is about 11621.1648727656. The cubic root of 135051473 is about 513.0579739347.

The spelling of 135051473 in words is "one hundred thirty-five million, fifty-one thousand, four hundred seventy-three".