274172729 has 2 divisors, whose sum is σ = 274172730. Its totient is φ = 274172728.

The previous prime is 274172707. The next prime is 274172737. The reversal of 274172729 is 927271472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269846329 + 4326400 = 16427^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 274172729 - 2⁸ = 274172473 is a prime.

It is not a weakly prime, because it can be changed into another prime (274172929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137086364 + 137086365.

It is an arithmetic number, because the mean of its divisors is an integer number (137086365).

Almost surely, 2^274172729 is an apocalyptic number.

It is an amenable number.

274172729 is a deficient number, since it is larger than the sum of its proper divisors (1).

274172729 is an equidigital number, since it uses as much as digits as its factorization.

274172729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98784, while the sum is 41.

The square root of 274172729 is about 16558.1620054884. The cubic root of 274172729 is about 649.6429826397.

The spelling of 274172729 in words is "two hundred seventy-four million, one hundred seventy-two thousand, seven hundred twenty-nine".