9139274237 has 8 divisors (see below), whose sum is σ = 9156339192. Its totient is φ = 9122227200.

The previous prime is 9139274233. The next prime is 9139274257. The reversal of 9139274237 is 7324729319.

9139274237 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2888632516 + 6250641721 = 53746^2 + 79061^2 .

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 9139274237 - 2² = 9139274233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9139274191 and 9139274200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9139274233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1386293 + ... + 1392869.

It is an arithmetic number, because the mean of its divisors is an integer number (1144542399).

Almost surely, 2^9139274237 is an apocalyptic number.

It is an amenable number.

9139274237 is a deficient number, since it is larger than the sum of its proper divisors (17064955).

9139274237 is a wasteful number, since it uses less digits than its factorization.

9139274237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8959.

The product of its digits is 571536, while the sum is 47.

The square root of 9139274237 is about 95599.5514476925. The cubic root of 9139274237 is about 2090.7586538639.

The spelling of 9139274237 in words is "nine billion, one hundred thirty-nine million, two hundred seventy-four thousand, two hundred thirty-seven".