9280145 has 32 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 5967360.

The previous prime is 9280123. The next prime is 9280163. The reversal of 9280145 is 5410829.

It is not a de Polignac number, because 9280145 - 2⁸ = 9279889 is a prime.

It is a super-2 number, since 2×9280145² = 172242182442050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41504 + ... + 41726.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^9280145 is an apocalyptic number.

It is an amenable number.

9280145 is a deficient number, since it is larger than the sum of its proper divisors (4267375).

9280145 is a wasteful number, since it uses less digits than its factorization.

9280145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 9280145 is about 3046.3330415436. Note that the first 3 decimals coincide. The cubic root of 9280145 is about 210.1446093915.

It can be divided in two parts, 9280 and 145, that multiplied together give a square (1345600 = 1160²).

The spelling of 9280145 in words is "nine million, two hundred eighty thousand, one hundred forty-five".