80121332 has 6 divisors (see below), whose sum is σ = 140212338. Its totient is φ = 40060664.

The previous prime is 80121281. The next prime is 80121337. The reversal of 80121332 is 23312108.

It can be written as a sum of positive squares in only one way, i.e., 44169316 + 35952016 = 6646^2 + 5996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80121337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10015163 + ... + 10015170.

It is an arithmetic number, because the mean of its divisors is an integer number (23368723).

Almost surely, 2^80121332 is an apocalyptic number.

It is an amenable number.

80121332 is a deficient number, since it is larger than the sum of its proper divisors (60091006).

80121332 is a wasteful number, since it uses less digits than its factorization.

80121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20030337 (or 20030335 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 80121332 is about 8951.0520052115. The cubic root of 80121332 is about 431.1046628642.

The spelling of 80121332 in words is "eighty million, one hundred twenty-one thousand, three hundred thirty-two".