1113545129 has 2 divisors, whose sum is σ = 1113545130. Its totient is φ = 1113545128.

The previous prime is 1113545113. The next prime is 1113545149. The reversal of 1113545129 is 9215453111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 803609104 + 309936025 = 28348^2 + 17605^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113545129 - 2⁴ = 1113545113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1113545095 and 1113545104.

It is not a weakly prime, because it can be changed into another prime (1113545149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556772564 + 556772565.

It is an arithmetic number, because the mean of its divisors is an integer number (556772565).

Almost surely, 2^1113545129 is an apocalyptic number.

It is an amenable number.

1113545129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113545129 is an equidigital number, since it uses as much as digits as its factorization.

1113545129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 32.

The square root of 1113545129 is about 33369.8236285420. The cubic root of 1113545129 is about 1036.4999230142.

The spelling of 1113545129 in words is "one billion, one hundred thirteen million, five hundred forty-five thousand, one hundred twenty-nine".