135776398 has 4 divisors (see below), whose sum is σ = 203664600. Its totient is φ = 67888198.

The previous prime is 135776369. The next prime is 135776401. The reversal of 135776398 is 893677531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 893677531 = 6653 ⋅134327.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33944098 + ... + 33944101.

It is an arithmetic number, because the mean of its divisors is an integer number (50916150).

Almost surely, 2^135776398 is an apocalyptic number.

135776398 is a deficient number, since it is larger than the sum of its proper divisors (67888202).

135776398 is an equidigital number, since it uses as much as digits as its factorization.

135776398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67888201.

The product of its digits is 952560, while the sum is 49.

The square root of 135776398 is about 11652.3129892738. The cubic root of 135776398 is about 513.9743283822.

The spelling of 135776398 in words is "one hundred thirty-five million, seven hundred seventy-six thousand, three hundred ninety-eight".