80840153 has 4 divisors (see below), whose sum is σ = 83025060. Its totient is φ = 78655248.

The previous prime is 80840107. The next prime is 80840183. The reversal of 80840153 is 35104808.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 70778569 + 10061584 = 8413^2 + 3172^2 .

It is a cyclic number.

It is not a de Polignac number, because 80840153 - 2¹⁸ = 80578009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80840183) 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 3 ways as a sum of consecutive naturals, for example, 1092398 + ... + 1092471.

It is an arithmetic number, because the mean of its divisors is an integer number (20756265).

Almost surely, 2^80840153 is an apocalyptic number.

It is an amenable number.

80840153 is a deficient number, since it is larger than the sum of its proper divisors (2184907).

80840153 is a wasteful number, since it uses less digits than its factorization.

80840153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184906.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 80840153 is about 8991.1152255991. The cubic root of 80840153 is about 432.3900672851.

The spelling of 80840153 in words is "eighty million, eight hundred forty thousand, one hundred fifty-three".