80229581 has 4 divisors (see below), whose sum is σ = 82817664. Its totient is φ = 77641500.

The previous prime is 80229547. The next prime is 80229599. The reversal of 80229581 is 18592208.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80229581 - 2¹⁰ = 80228557 is a prime.

It is a super-2 number, since 2×80229581² = 12873571334871122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80229181) 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, 1293995 + ... + 1294056.

It is an arithmetic number, because the mean of its divisors is an integer number (20704416).

Almost surely, 2^80229581 is an apocalyptic number.

It is an amenable number.

80229581 is a deficient number, since it is larger than the sum of its proper divisors (2588083).

80229581 is a wasteful number, since it uses less digits than its factorization.

80229581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588082.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 80229581 is about 8957.0966836358. The cubic root of 80229581 is about 431.2987254054.

The spelling of 80229581 in words is "eighty million, two hundred twenty-nine thousand, five hundred eighty-one".