13131755 has 64 divisors (see below), whose sum is σ = 21504000. Its totient is φ = 7620480.

The previous prime is 13131749. The next prime is 13131761. The reversal of 13131755 is 55713131.

13131755 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13131749) and next prime (13131761).

It is not a de Polignac number, because 13131755 - 2⁸ = 13131499 is a prime.

Its product of digits (1575) is a multiple of the sum of its prime divisors (75).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 423590 + ... + 423620.

It is an arithmetic number, because the mean of its divisors is an integer number (336000).

Almost surely, 2^13131755 is an apocalyptic number.

13131755 is a deficient number, since it is larger than the sum of its proper divisors (8372245).

13131755 is a wasteful number, since it uses less digits than its factorization.

13131755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 75 counting only the distinct ones).

The product of its digits is 1575, while the sum is 26.

The square root of 13131755 is about 3623.7763451957. The cubic root of 13131755 is about 235.9251594060.

Adding to 13131755 its reverse (55713131), we get a palindrome (68844886).

The spelling of 13131755 in words is "thirteen million, one hundred thirty-one thousand, seven hundred fifty-five".