729126154 has 4 divisors (see below), whose sum is σ = 1093689234. Its totient is φ = 364563076.

The previous prime is 729126137. The next prime is 729126187. The reversal of 729126154 is 451621927.

729126154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 451621927 = 3701 ⋅122027.

It can be written as a sum of positive squares in only one way, i.e., 454329225 + 274796929 = 21315^2 + 16577^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182281537 + ... + 182281540.

Almost surely, 2^729126154 is an apocalyptic number.

729126154 is a deficient number, since it is larger than the sum of its proper divisors (364563080).

729126154 is a wasteful number, since it uses less digits than its factorization.

729126154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364563079.

The product of its digits is 30240, while the sum is 37.

The square root of 729126154 is about 27002.3360841243. The cubic root of 729126154 is about 900.0519122320.

The spelling of 729126154 in words is "seven hundred twenty-nine million, one hundred twenty-six thousand, one hundred fifty-four".