1111545139 has 2 divisors, whose sum is σ = 1111545140. Its totient is φ = 1111545138.

The previous prime is 1111545101. The next prime is 1111545151. The reversal of 1111545139 is 9315451111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1111545139 - 2²⁹ = 574674227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111545139.

It is not a weakly prime, because it can be changed into another prime (1111545199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555772569 + 555772570.

It is an arithmetic number, because the mean of its divisors is an integer number (555772570).

Almost surely, 2^1111545139 is an apocalyptic number.

1111545139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111545139 is an equidigital number, since it uses as much as digits as its factorization.

1111545139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 31.

The square root of 1111545139 is about 33339.8431160076. The cubic root of 1111545139 is about 1035.8790136513.

The spelling of 1111545139 in words is "one billion, one hundred eleven million, five hundred forty-five thousand, one hundred thirty-nine".