729150251 has 4 divisors (see below), whose sum is σ = 767526600. Its totient is φ = 690773904.

The previous prime is 729150217. The next prime is 729150299. The reversal of 729150251 is 152051927.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729150251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (729150551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19188146 + ... + 19188183.

It is an arithmetic number, because the mean of its divisors is an integer number (191881650).

Almost surely, 2^729150251 is an apocalyptic number.

729150251 is a deficient number, since it is larger than the sum of its proper divisors (38376349).

729150251 is a wasteful number, since it uses less digits than its factorization.

729150251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38376348.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 729150251 is about 27002.7822825723. The cubic root of 729150251 is about 900.0618274398.

The spelling of 729150251 in words is "seven hundred twenty-nine million, one hundred fifty thousand, two hundred fifty-one".