906122449 has 4 divisors (see below), whose sum is σ = 906182964. Its totient is φ = 906061936.

The previous prime is 906122443. The next prime is 906122639. The reversal of 906122449 is 944221609.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 388878400 + 517244049 = 19720^2 + 22743^2 .

It is a cyclic number.

It is not a de Polignac number, because 906122449 - 2¹³ = 906114257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (906122443) 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, 10539 + ... + 43855.

It is an arithmetic number, because the mean of its divisors is an integer number (226545741).

Almost surely, 2^906122449 is an apocalyptic number.

It is an amenable number.

906122449 is a deficient number, since it is larger than the sum of its proper divisors (60515).

906122449 is a wasteful number, since it uses less digits than its factorization.

906122449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60514.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 906122449 is about 30101.8678656325. The cubic root of 906122449 is about 967.6737571821.

The spelling of 906122449 in words is "nine hundred six million, one hundred twenty-two thousand, four hundred forty-nine".