845126690 has 8 divisors (see below), whose sum is σ = 1521228060. Its totient is φ = 338050672.

The previous prime is 845126663. The next prime is 845126699. The reversal of 845126690 is 96621548.

It is a happy number.

845126690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 840594049 + 4532641 = 28993^2 + 2129^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×845126690² = 1428478244300712200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (845126699) 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, 42256325 + ... + 42256344.

Almost surely, 2^845126690 is an apocalyptic number.

845126690 is a deficient number, since it is larger than the sum of its proper divisors (676101370).

845126690 is a wasteful number, since it uses less digits than its factorization.

845126690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84512676.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 845126690 is about 29071.0627600712. The cubic root of 845126690 is about 945.4544402204.

The spelling of 845126690 in words is "eight hundred forty-five million, one hundred twenty-six thousand, six hundred ninety".