9042987245 has 4 divisors (see below), whose sum is σ = 10851584700. Its totient is φ = 7234389792.

The previous prime is 9042987241. The next prime is 9042987251. The reversal of 9042987245 is 5427892409.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3469916836 + 5573070409 = 58906^2 + 74653^2 .

It is a cyclic number.

It is not a de Polignac number, because 9042987245 - 2² = 9042987241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9042987193 and 9042987202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9042987241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904298720 + ... + 904298729.

It is an arithmetic number, because the mean of its divisors is an integer number (2712896175).

Almost surely, 2^9042987245 is an apocalyptic number.

It is an amenable number.

9042987245 is a deficient number, since it is larger than the sum of its proper divisors (1808597455).

9042987245 is a wasteful number, since it uses less digits than its factorization.

9042987245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808597454.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 9042987245 is about 95094.6225871894. The cubic root of 9042987245 is about 2083.3903077468.

The spelling of 9042987245 in words is "nine billion, forty-two million, nine hundred eighty-seven thousand, two hundred forty-five".