135377477 has 8 divisors (see below), whose sum is σ = 143458776. Its totient is φ = 127309312.

The previous prime is 135377467. The next prime is 135377491. The reversal of 135377477 is 774773531.

It can be written as a sum of positive squares in 4 ways, for example, as 39513796 + 95863681 = 6286^2 + 9791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135377477 - 2⁴ = 135377461 is a prime.

It is a super-2 number, since 2×135377477² = 36654122557771058, 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 (135377467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24953 + ... + 29889.

It is an arithmetic number, because the mean of its divisors is an integer number (17932347).

Almost surely, 2^135377477 is an apocalyptic number.

135377477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

135377477 is a deficient number, since it is larger than the sum of its proper divisors (8081299).

135377477 is a wasteful number, since it uses less digits than its factorization.

135377477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6567.

The product of its digits is 432180, while the sum is 44.

The square root of 135377477 is about 11635.1827231032. The cubic root of 135377477 is about 513.4704698637.

The spelling of 135377477 in words is "one hundred thirty-five million, three hundred seventy-seven thousand, four hundred seventy-seven".