1051011139 has 2 divisors, whose sum is σ = 1051011140. Its totient is φ = 1051011138.

The previous prime is 1051011121. The next prime is 1051011161. The reversal of 1051011139 is 9311101501.

It is an a-pointer prime, because the next prime (1051011161) can be obtained adding 1051011139 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1051011139 - 2¹⁹ = 1050486851 is a prime.

It is a super-2 number, since 2×1051011139² = 2209248828604154642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1051011439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525505569 + 525505570.

It is an arithmetic number, because the mean of its divisors is an integer number (525505570).

Almost surely, 2^1051011139 is an apocalyptic number.

1051011139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051011139 is an equidigital number, since it uses as much as digits as its factorization.

1051011139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 22.

The square root of 1051011139 is about 32419.3019511525. The cubic root of 1051011139 is about 1016.7225118238.

The spelling of 1051011139 in words is "one billion, fifty-one million, eleven thousand, one hundred thirty-nine".