135371554 has 4 divisors (see below), whose sum is σ = 203057334. Its totient is φ = 67685776.

The previous prime is 135371543. The next prime is 135371597. The reversal of 135371554 is 455173531.

135371554 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455173531 = 29 ⋅15695639.

It can be written as a sum of positive squares in only one way, i.e., 98465929 + 36905625 = 9923^2 + 6075^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33842887 + ... + 33842890.

Almost surely, 2^135371554 is an apocalyptic number.

135371554 is a deficient number, since it is larger than the sum of its proper divisors (67685780).

135371554 is an equidigital number, since it uses as much as digits as its factorization.

135371554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67685779.

The product of its digits is 31500, while the sum is 34.

The square root of 135371554 is about 11634.9281905820. The cubic root of 135371554 is about 513.4629813459.

The spelling of 135371554 in words is "one hundred thirty-five million, three hundred seventy-one thousand, five hundred fifty-four".