9138861137 has 8 divisors (see below), whose sum is σ = 10561766400. Its totient is φ = 7745294304.

The previous prime is 9138861133. The next prime is 9138861161. The reversal of 9138861137 is 7311688319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9138861137 - 2² = 9138861133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9138861091 and 9138861100.

It is not an unprimeable number, because it can be changed into a prime (9138861131) 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, 7333937 + ... + 7335182.

It is an arithmetic number, because the mean of its divisors is an integer number (1320220800).

Almost surely, 2^9138861137 is an apocalyptic number.

It is an amenable number.

9138861137 is a deficient number, since it is larger than the sum of its proper divisors (1422905263).

9138861137 is a wasteful number, since it uses less digits than its factorization.

9138861137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14669215.

The product of its digits is 217728, while the sum is 47.

The square root of 9138861137 is about 95597.3908482862. The cubic root of 9138861137 is about 2090.7271522592.

The spelling of 9138861137 in words is "nine billion, one hundred thirty-eight million, eight hundred sixty-one thousand, one hundred thirty-seven".