9047091145 has 4 divisors (see below), whose sum is σ = 10856509380. Its totient is φ = 7237672912.

The previous prime is 9047091143. The next prime is 9047091173. The reversal of 9047091145 is 5411907409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5411907409 = 359 ⋅15074951.

It can be written as a sum of positive squares in 2 ways, for example, as 4309659904 + 4737431241 = 65648^2 + 68829^2 .

It is a cyclic number.

It is not a de Polignac number, because 9047091145 - 2¹ = 9047091143 is a prime.

It is a super-2 number, since 2×9047091145² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9047091098 and 9047091107.

It is not an unprimeable number, because it can be changed into a prime (9047091143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904709110 + ... + 904709119.

It is an arithmetic number, because the mean of its divisors is an integer number (2714127345).

Almost surely, 2^9047091145 is an apocalyptic number.

It is an amenable number.

9047091145 is a deficient number, since it is larger than the sum of its proper divisors (1809418235).

9047091145 is a wasteful number, since it uses less digits than its factorization.

9047091145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809418234.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 9047091145 is about 95116.1981210351. The cubic root of 9047091145 is about 2083.7054223648.

The spelling of 9047091145 in words is "nine billion, forty-seven million, ninety-one thousand, one hundred forty-five".