73154729 has 2 divisors, whose sum is σ = 73154730. Its totient is φ = 73154728.

The previous prime is 73154717. The next prime is 73154759. The reversal of 73154729 is 92745137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55472704 + 17682025 = 7448^2 + 4205^2 .

It is a cyclic number.

It is not a de Polignac number, because 73154729 - 2⁴ = 73154713 is a prime.

It is a super-2 number, since 2×73154729² = 10703228750126882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73154692 and 73154701.

It is not a weakly prime, because it can be changed into another prime (73154759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36577364 + 36577365.

It is an arithmetic number, because the mean of its divisors is an integer number (36577365).

Almost surely, 2^73154729 is an apocalyptic number.

It is an amenable number.

73154729 is a deficient number, since it is larger than the sum of its proper divisors (1).

73154729 is an equidigital number, since it uses as much as digits as its factorization.

73154729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 73154729 is about 8553.0537821295. The cubic root of 73154729 is about 418.2289920704.

The spelling of 73154729 in words is "seventy-three million, one hundred fifty-four thousand, seven hundred twenty-nine".