135851377 has 4 divisors (see below), whose sum is σ = 136460800. Its totient is φ = 135241956.

The previous prime is 135851371. The next prime is 135851389. The reversal of 135851377 is 773158531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 773158531 = 29 ⋅26660639.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135851377 is a prime.

It is a super-2 number, since 2×135851377² = 36911193265592258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135851371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304377 + ... + 304822.

It is an arithmetic number, because the mean of its divisors is an integer number (34115200).

Almost surely, 2^135851377 is an apocalyptic number.

It is an amenable number.

135851377 is a deficient number, since it is larger than the sum of its proper divisors (609423).

135851377 is an equidigital number, since it uses as much as digits as its factorization.

135851377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609422.

The product of its digits is 88200, while the sum is 40.

The square root of 135851377 is about 11655.5298892843. The cubic root of 135851377 is about 514.0689206436.

The spelling of 135851377 in words is "one hundred thirty-five million, eight hundred fifty-one thousand, three hundred seventy-seven".