13611057 has 12 divisors (see below), whose sum is σ = 18608400. Its totient is φ = 8849440.

The previous prime is 13611053. The next prime is 13611061. The reversal of 13611057 is 75011631.

13611057 is digitally balanced in base 2, 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 (13611053) and next prime (13611061).

It is not a de Polignac number, because 13611057 - 2² = 13611053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13611053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3694 + ... + 6392.

It is an arithmetic number, because the mean of its divisors is an integer number (1550700).

Almost surely, 2^13611057 is an apocalyptic number.

It is an amenable number.

13611057 is a deficient number, since it is larger than the sum of its proper divisors (4997343).

13611057 is an equidigital number, since it uses as much as digits as its factorization.

13611057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784 (or 2743 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 13611057 is about 3689.3166033833. The cubic root of 13611057 is about 238.7613088217.

Adding to 13611057 its reverse (75011631), we get a palindrome (88622688).

The spelling of 13611057 in words is "thirteen million, six hundred eleven thousand, fifty-seven".