135577501 has 2 divisors, whose sum is σ = 135577502. Its totient is φ = 135577500.

The previous prime is 135577493. The next prime is 135577573. The reversal of 135577501 is 105775531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131125401 + 4452100 = 11451^2 + 2110^2 .

It is a cyclic number.

It is not a de Polignac number, because 135577501 - 2³ = 135577493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135577301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67788750 + 67788751.

It is an arithmetic number, because the mean of its divisors is an integer number (67788751).

Almost surely, 2^135577501 is an apocalyptic number.

It is an amenable number.

135577501 is a deficient number, since it is larger than the sum of its proper divisors (1).

135577501 is an equidigital number, since it uses as much as digits as its factorization.

135577501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18375, while the sum is 34.

The square root of 135577501 is about 11643.7752039448. The cubic root of 135577501 is about 513.7232343982.

The spelling of 135577501 in words is "one hundred thirty-five million, five hundred seventy-seven thousand, five hundred one".