80013261 has 4 divisors (see below), whose sum is σ = 106684352. Its totient is φ = 53342172.

The previous prime is 80013257. The next prime is 80013281. The reversal of 80013261 is 16231008.

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 not a de Polignac number, because 80013261 - 2² = 80013257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80013281) 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, 13335541 + ... + 13335546.

It is an arithmetic number, because the mean of its divisors is an integer number (26671088).

Almost surely, 2^80013261 is an apocalyptic number.

It is an amenable number.

80013261 is a deficient number, since it is larger than the sum of its proper divisors (26671091).

80013261 is a wasteful number, since it uses less digits than its factorization.

80013261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26671090.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 80013261 is about 8945.0131917175. The cubic root of 80013261 is about 430.9107449897.

Adding to 80013261 its reverse (16231008), we get a palindrome (96244269).

The spelling of 80013261 in words is "eighty million, thirteen thousand, two hundred sixty-one".