12013755 has 16 divisors (see below), whose sum is σ = 20700960. Its totient is φ = 5914368.

The previous prime is 12013753. The next prime is 12013759. The reversal of 12013755 is 55731021.

It is not a de Polignac number, because 12013755 - 2¹ = 12013753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12013753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30610 + ... + 30999.

It is an arithmetic number, because the mean of its divisors is an integer number (1293810).

Almost surely, 2^12013755 is an apocalyptic number.

12013755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12013755 is a deficient number, since it is larger than the sum of its proper divisors (8687205).

12013755 is a wasteful number, since it uses less digits than its factorization.

12013755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61630.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 12013755 is about 3466.0864097711. The cubic root of 12013755 is about 229.0302903558.

Adding to 12013755 its reverse (55731021), we get a palindrome (67744776).

The spelling of 12013755 in words is "twelve million, thirteen thousand, seven hundred fifty-five".