1138567306 has 16 divisors (see below), whose sum is σ = 1745292744. Its totient is φ = 556867584.

The previous prime is 1138567291. The next prime is 1138567307. The reversal of 1138567306 is 6037658311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 830880625 + 307686681 = 28825^2 + 17541^2 .

It is not an unprimeable number, because it can be changed into a prime (1138567307) 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, 19786 + ... + 51658.

Almost surely, 2^1138567306 is an apocalyptic number.

1138567306 is a deficient number, since it is larger than the sum of its proper divisors (606725438).

1138567306 is a wasteful number, since it uses less digits than its factorization.

1138567306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32265.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1138567306 is about 33742.6629950868. The cubic root of 1138567306 is about 1044.2061249225.

The spelling of 1138567306 in words is "one billion, one hundred thirty-eight million, five hundred sixty-seven thousand, three hundred six".