9149185730 has 16 divisors (see below), whose sum is σ = 16913630520. Its totient is φ = 3560764032.

The previous prime is 9149185687. The next prime is 9149185733. The reversal of 9149185730 is 375819419.

It can be written as a sum of positive squares in 4 ways, for example, as 7512902329 + 1636283401 = 86677^2 + 40451^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9149185733) 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, 12363395 + ... + 12364134.

Almost surely, 2^9149185730 is an apocalyptic number.

9149185730 is a deficient number, since it is larger than the sum of its proper divisors (7764444790).

9149185730 is a wasteful number, since it uses less digits than its factorization.

9149185730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24727573.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 9149185730 is about 95651.3759963755. The cubic root of 9149185730 is about 2091.5141862536.

The spelling of 9149185730 in words is "nine billion, one hundred forty-nine million, one hundred eighty-five thousand, seven hundred thirty".