73129153 has 2 divisors, whose sum is σ = 73129154. Its totient is φ = 73129152.

The previous prime is 73129139. The next prime is 73129163. The reversal of 73129153 is 35192137.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57942544 + 15186609 = 7612^2 + 3897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73129153 is a prime.

It is not a weakly prime, because it can be changed into another prime (73129103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36564576 + 36564577.

It is an arithmetic number, because the mean of its divisors is an integer number (36564577).

Almost surely, 2^73129153 is an apocalyptic number.

It is an amenable number.

73129153 is a deficient number, since it is larger than the sum of its proper divisors (1).

73129153 is an equidigital number, since it uses as much as digits as its factorization.

73129153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670, while the sum is 31.

The square root of 73129153 is about 8551.5585129262. The cubic root of 73129153 is about 418.1802466616.

The spelling of 73129153 in words is "seventy-three million, one hundred twenty-nine thousand, one hundred fifty-three".