1138265498 has 16 divisors (see below), whose sum is σ = 1823838120. Its totient is φ = 530912256.

The previous prime is 1138265497. The next prime is 1138265501. The reversal of 1138265498 is 8945628311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 744362089 + 393903409 = 27283^2 + 19847^2 .

It is a super-3 number, since 3×1138265498³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1138265497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144293 + ... + 151976.

Almost surely, 2^1138265498 is an apocalyptic number.

1138265498 is a deficient number, since it is larger than the sum of its proper divisors (685572622).

1138265498 is a wasteful number, since it uses less digits than its factorization.

1138265498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296401.

The product of its digits is 414720, while the sum is 47.

The square root of 1138265498 is about 33738.1904968242. The cubic root of 1138265498 is about 1044.1138517616.

The spelling of 1138265498 in words is "one billion, one hundred thirty-eight million, two hundred sixty-five thousand, four hundred ninety-eight".