150429721 has 8 divisors (see below), whose sum is σ = 164657864. Its totient is φ = 136581120.

The previous prime is 150429709. The next prime is 150429731. The reversal of 150429721 is 127924051.

It can be written as a sum of positive squares in 4 ways, for example, as 24025 + 150405696 = 155^2 + 12264^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 150429721 - 2⁵ = 150429689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150429731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94056 + ... + 95641.

It is an arithmetic number, because the mean of its divisors is an integer number (20582233).

Almost surely, 2^150429721 is an apocalyptic number.

It is an amenable number.

150429721 is a deficient number, since it is larger than the sum of its proper divisors (14228143).

150429721 is a wasteful number, since it uses less digits than its factorization.

150429721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189771.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 150429721 is about 12264.9794537129. The cubic root of 150429721 is about 531.8361860664.

The spelling of 150429721 in words is "one hundred fifty million, four hundred twenty-nine thousand, seven hundred twenty-one".