1113551807 has 2 divisors, whose sum is σ = 1113551808. Its totient is φ = 1113551806.

The previous prime is 1113551797. The next prime is 1113551809. The reversal of 1113551807 is 7081553111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1113551807 - 2⁶ = 1113551743 is a prime.

Together with 1113551809, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113551809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556775903 + 556775904.

It is an arithmetic number, because the mean of its divisors is an integer number (556775904).

Almost surely, 2^1113551807 is an apocalyptic number.

1113551807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113551807 is an equidigital number, since it uses as much as digits as its factorization.

1113551807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 32.

The square root of 1113551807 is about 33369.9236888549. The cubic root of 1113551807 is about 1036.5019949951.

The spelling of 1113551807 in words is "one billion, one hundred thirteen million, five hundred fifty-one thousand, eight hundred seven".