12611403 has 32 divisors (see below), whose sum is σ = 21772800. Its totient is φ = 7064928.

The previous prime is 12611393. The next prime is 12611411. The reversal of 12611403 is 30411621.

It is a happy number.

12611403 is a `hidden beast` number, since 1 + 261 + 1 + 403 = 666.

12611403 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12611403 - 2⁴ = 12611387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12611453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9388 + ... + 10646.

It is an arithmetic number, because the mean of its divisors is an integer number (680400).

Almost surely, 2^12611403 is an apocalyptic number.

12611403 is a deficient number, since it is larger than the sum of its proper divisors (9161397).

12611403 is a wasteful number, since it uses less digits than its factorization.

12611403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328 (or 1322 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12611403 is about 3551.2537222789. The cubic root of 12611403 is about 232.7668528106.

The spelling of 12611403 in words is "twelve million, six hundred eleven thousand, four hundred three".