73132109 has 2 divisors, whose sum is σ = 73132110. Its totient is φ = 73132108.

The previous prime is 73132099. The next prime is 73132127. The reversal of 73132109 is 90123137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70190884 + 2941225 = 8378^2 + 1715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73132109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73132909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36566054 + 36566055.

It is an arithmetic number, because the mean of its divisors is an integer number (36566055).

Almost surely, 2^73132109 is an apocalyptic number.

It is an amenable number.

73132109 is a deficient number, since it is larger than the sum of its proper divisors (1).

73132109 is an equidigital number, since it uses as much as digits as its factorization.

73132109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 73132109 is about 8551.7313451722. The cubic root of 73132109 is about 418.1858810956.

The spelling of 73132109 in words is "seventy-three million, one hundred thirty-two thousand, one hundred nine".