13135880 has 16 divisors (see below), whose sum is σ = 29555820. Its totient is φ = 5254336.

The previous prime is 13135879. The next prime is 13135919. The reversal of 13135880 is 8853131.

It can be written as a sum of positive squares in 2 ways, for example, as 12773476 + 362404 = 3574^2 + 602^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164159 + ... + 164238.

Almost surely, 2^13135880 is an apocalyptic number.

13135880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13135880 is an abundant number, since it is smaller than the sum of its proper divisors (16419940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13135880 is a wasteful number, since it uses less digits than its factorization.

13135880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328408 (or 328404 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 13135880 is about 3624.3454581483. The cubic root of 13135880 is about 235.9498600750.

The spelling of 13135880 in words is "thirteen million, one hundred thirty-five thousand, eight hundred eighty".