135425677 has 4 divisors (see below), whose sum is σ = 136821916. Its totient is φ = 134029440.

The previous prime is 135425663. The next prime is 135425699. The reversal of 135425677 is 776524531.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48358116 + 87067561 = 6954^2 + 9331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135425677 is a prime.

It is a super-2 number, since 2×135425677² = 36680227981816658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135425627) 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, 697974 + ... + 698167.

It is an arithmetic number, because the mean of its divisors is an integer number (34205479).

Almost surely, 2^135425677 is an apocalyptic number.

It is an amenable number.

135425677 is a deficient number, since it is larger than the sum of its proper divisors (1396239).

135425677 is an equidigital number, since it uses as much as digits as its factorization.

135425677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396238.

The product of its digits is 176400, while the sum is 40.

The square root of 135425677 is about 11637.2538427242. The cubic root of 135425677 is about 513.5314015650.

The spelling of 135425677 in words is "one hundred thirty-five million, four hundred twenty-five thousand, six hundred seventy-seven".