9250145 has 4 divisors (see below), whose sum is σ = 11100180. Its totient is φ = 7400112.

The previous prime is 9250139. The next prime is 9250177. The reversal of 9250145 is 5410529.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5410529 = 577 ⋅9377.

It can be written as a sum of positive squares in 2 ways, for example, as 2650384 + 6599761 = 1628^2 + 2569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9250145 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925010 + ... + 925019.

It is an arithmetic number, because the mean of its divisors is an integer number (2775045).

Almost surely, 2^9250145 is an apocalyptic number.

It is an amenable number.

9250145 is a deficient number, since it is larger than the sum of its proper divisors (1850035).

9250145 is a wasteful number, since it uses less digits than its factorization.

9250145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850034.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 9250145 is about 3041.4051029089. The cubic root of 9250145 is about 209.9179195474.

The spelling of 9250145 in words is "nine million, two hundred fifty thousand, one hundred forty-five".