1139814457 has 2 divisors, whose sum is σ = 1139814458. Its totient is φ = 1139814456.

The previous prime is 1139814439. The next prime is 1139814469. The reversal of 1139814457 is 7544189311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1139467536 + 346921 = 33756^2 + 589^2 .

It is a cyclic number.

It is not a de Polignac number, because 1139814457 - 2²⁷ = 1005596729 is a prime.

It is not a weakly prime, because it can be changed into another prime (1139814257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569907228 + 569907229.

It is an arithmetic number, because the mean of its divisors is an integer number (569907229).

Almost surely, 2^1139814457 is an apocalyptic number.

It is an amenable number.

1139814457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139814457 is an equidigital number, since it uses as much as digits as its factorization.

1139814457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 1139814457 is about 33761.1382657635. The cubic root of 1139814457 is about 1044.5872493707.

The spelling of 1139814457 in words is "one billion, one hundred thirty-nine million, eight hundred fourteen thousand, four hundred fifty-seven".