1051236139 has 2 divisors, whose sum is σ = 1051236140. Its totient is φ = 1051236138.

The previous prime is 1051236083. The next prime is 1051236149. The reversal of 1051236139 is 9316321501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051236139 is a prime.

It is a super-2 number, since 2×1051236139² = 2210194839879254642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051236139.

It is not a weakly prime, because it can be changed into another prime (1051236149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525618069 + 525618070.

It is an arithmetic number, because the mean of its divisors is an integer number (525618070).

Almost surely, 2^1051236139 is an apocalyptic number.

1051236139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051236139 is an equidigital number, since it uses as much as digits as its factorization.

1051236139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1051236139 is about 32422.7719203649. The cubic root of 1051236139 is about 1016.7950598157.

The spelling of 1051236139 in words is "one billion, fifty-one million, two hundred thirty-six thousand, one hundred thirty-nine".