1113616401 has 4 divisors (see below), whose sum is σ = 1484821872. Its totient is φ = 742410932.

The previous prime is 1113616381. The next prime is 1113616409. The reversal of 1113616401 is 1046163111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1113616401 - 2²¹ = 1111519249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1113616409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185602731 + ... + 185602736.

It is an arithmetic number, because the mean of its divisors is an integer number (371205468).

Almost surely, 2^1113616401 is an apocalyptic number.

It is an amenable number.

1113616401 is a deficient number, since it is larger than the sum of its proper divisors (371205471).

1113616401 is an equidigital number, since it uses as much as digits as its factorization.

1113616401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371205470.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1113616401 is about 33370.8915224032. The cubic root of 1113616401 is about 1036.5220361268.

Adding to 1113616401 its reverse (1046163111), we get a palindrome (2159779512).

The spelling of 1113616401 in words is "one billion, one hundred thirteen million, six hundred sixteen thousand, four hundred one".