80441145 has 24 divisors (see below), whose sum is σ = 143202696. Its totient is φ = 41741568.

The previous prime is 80441129. The next prime is 80441149. The reversal of 80441145 is 54114408.

It is a happy number.

80441145 is a `hidden beast` number, since 80 + 441 + 145 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 14197824 + 66243321 = 3768^2 + 8139^2 .

It is not a de Polignac number, because 80441145 - 2⁴ = 80441129 is a prime.

It is a super-2 number, since 2×80441145² = 12941555617822050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80441149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22492 + ... + 25821.

It is an arithmetic number, because the mean of its divisors is an integer number (5966779).

Almost surely, 2^80441145 is an apocalyptic number.

It is an amenable number.

80441145 is a deficient number, since it is larger than the sum of its proper divisors (62761551).

80441145 is a wasteful number, since it uses less digits than its factorization.

80441145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48361 (or 48358 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 80441145 is about 8968.8987618325. The cubic root of 80441145 is about 431.6775017198.

The spelling of 80441145 in words is "eighty million, four hundred forty-one thousand, one hundred forty-five".