135120473 has 2 divisors, whose sum is σ = 135120474. Its totient is φ = 135120472.

The previous prime is 135120463. The next prime is 135120493. The reversal of 135120473 is 374021531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67683529 + 67436944 = 8227^2 + 8212^2 .

It is a cyclic number.

It is not a de Polignac number, because 135120473 - 2⁶ = 135120409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (135120463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67560236 + 67560237.

It is an arithmetic number, because the mean of its divisors is an integer number (67560237).

Almost surely, 2^135120473 is an apocalyptic number.

It is an amenable number.

135120473 is a deficient number, since it is larger than the sum of its proper divisors (1).

135120473 is an equidigital number, since it uses as much as digits as its factorization.

135120473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 135120473 is about 11624.1332149972. The cubic root of 135120473 is about 513.1453356202.

The spelling of 135120473 in words is "one hundred thirty-five million, one hundred twenty thousand, four hundred seventy-three".