150985709 has 12 divisors (see below), whose sum is σ = 176061600. Its totient is φ = 129103128.

The previous prime is 150985699. The next prime is 150985727. The reversal of 150985709 is 907589051.

It is a happy number.

It is not a de Polignac number, because 150985709 - 2⁴ = 150985693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 150985709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150982709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18002 + ... + 25020.

It is an arithmetic number, because the mean of its divisors is an integer number (14671800).

Almost surely, 2^150985709 is an apocalyptic number.

It is an amenable number.

150985709 is a deficient number, since it is larger than the sum of its proper divisors (25075891).

150985709 is an equidigital number, since it uses as much as digits as its factorization.

150985709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7472 (or 7465 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 44.

The square root of 150985709 is about 12287.6242211422. The cubic root of 150985709 is about 532.4906023748.

The spelling of 150985709 in words is "one hundred fifty million, nine hundred eighty-five thousand, seven hundred nine".