845440149 has 8 divisors (see below), whose sum is σ = 1128714912. Its totient is φ = 562896080.

The previous prime is 845440081. The next prime is 845440159. The reversal of 845440149 is 941044548.

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

It is a cyclic number.

It is not a de Polignac number, because 845440149 - 2⁸ = 845439893 is a prime.

It is a super-2 number, since 2×845440149² = 1429538091082284402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845440159) 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 7 ways as a sum of consecutive naturals, for example, 179967 + ... + 184604.

It is an arithmetic number, because the mean of its divisors is an integer number (141089364).

Almost surely, 2^845440149 is an apocalyptic number.

It is an amenable number.

845440149 is a deficient number, since it is larger than the sum of its proper divisors (283274763).

845440149 is a wasteful number, since it uses less digits than its factorization.

845440149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365347.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 845440149 is about 29076.4535148288. The cubic root of 845440149 is about 945.5713160191.

The spelling of 845440149 in words is "eight hundred forty-five million, four hundred forty thousand, one hundred forty-nine".