906012545 has 4 divisors (see below), whose sum is σ = 1087215060. Its totient is φ = 724810032.

The previous prime is 906012493. The next prime is 906012553. The reversal of 906012545 is 545210609.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545210609 = 31 ⋅17587439.

It can be written as a sum of positive squares in 2 ways, for example, as 498941569 + 407070976 = 22337^2 + 20176^2 .

It is a cyclic number.

It is not a de Polignac number, because 906012545 - 2²⁴ = 889235329 is a prime.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 90601250 + ... + 90601259.

It is an arithmetic number, because the mean of its divisors is an integer number (271803765).

Almost surely, 2^906012545 is an apocalyptic number.

It is an amenable number.

906012545 is a deficient number, since it is larger than the sum of its proper divisors (181202515).

906012545 is a wasteful number, since it uses less digits than its factorization.

906012545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181202514.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 906012545 is about 30100.0422757178. The cubic root of 906012545 is about 967.6346324049.

The spelling of 906012545 in words is "nine hundred six million, twelve thousand, five hundred forty-five".