1138259377 has 2 divisors, whose sum is σ = 1138259378. Its totient is φ = 1138259376.

The previous prime is 1138259371. The next prime is 1138259383. The reversal of 1138259377 is 7739528311.

It is a balanced prime because it is at equal distance from previous prime (1138259371) and next prime (1138259383).

It can be written as a sum of positive squares in only one way, i.e., 1131582321 + 6677056 = 33639^2 + 2584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1138259377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1138259371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569129688 + 569129689.

It is an arithmetic number, because the mean of its divisors is an integer number (569129689).

Almost surely, 2^1138259377 is an apocalyptic number.

It is an amenable number.

1138259377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138259377 is an equidigital number, since it uses as much as digits as its factorization.

1138259377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 46.

The square root of 1138259377 is about 33738.0997834792. The cubic root of 1138259377 is about 1044.1119801911. Note that the first 3 decimals are identical.

The spelling of 1138259377 in words is "one billion, one hundred thirty-eight million, two hundred fifty-nine thousand, three hundred seventy-seven".