9158849137 has 2 divisors, whose sum is σ = 9158849138. Its totient is φ = 9158849136.

The previous prime is 9158849123. The next prime is 9158849179. The reversal of 9158849137 is 7319488519.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8019381601 + 1139467536 = 89551^2 + 33756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9158849137 is a prime.

It is a super-4 number, since 4×9158849137⁴ (a number of 41 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (9158849197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4579424568 + 4579424569.

It is an arithmetic number, because the mean of its divisors is an integer number (4579424569).

Almost surely, 2^9158849137 is an apocalyptic number.

It is an amenable number.

9158849137 is a deficient number, since it is larger than the sum of its proper divisors (1).

9158849137 is an equidigital number, since it uses as much as digits as its factorization.

9158849137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 55.

The square root of 9158849137 is about 95701.8763504666. The cubic root of 9158849137 is about 2092.2502824082.

The spelling of 9158849137 in words is "nine billion, one hundred fifty-eight million, eight hundred forty-nine thousand, one hundred thirty-seven".