150749905 has 8 divisors (see below), whose sum is σ = 181216872. Its totient is φ = 120388608.

The previous prime is 150749899. The next prime is 150749941. The reversal of 150749905 is 509947051.

It can be written as a sum of positive squares in 4 ways, for example, as 45050944 + 105698961 = 6712^2 + 10281^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 150749905 - 2⁷ = 150749777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 23242 + ... + 29011.

It is an arithmetic number, because the mean of its divisors is an integer number (22652109).

Almost surely, 2^150749905 is an apocalyptic number.

It is an amenable number.

150749905 is a deficient number, since it is larger than the sum of its proper divisors (30466967).

150749905 is an equidigital number, since it uses as much as digits as its factorization.

150749905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52835.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 150749905 is about 12278.0252891090. The cubic root of 150749905 is about 532.2132497732.

The spelling of 150749905 in words is "one hundred fifty million, seven hundred forty-nine thousand, nine hundred five".