150889985 has 4 divisors (see below), whose sum is σ = 181067988. Its totient is φ = 120711984.

The previous prime is 150889979. The next prime is 150889997. The reversal of 150889985 is 589988051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 589988051 = 37 ⋅15945623.

It can be written as a sum of positive squares in 2 ways, for example, as 78996544 + 71893441 = 8888^2 + 8479^2 .

It is a cyclic number.

It is not a de Polignac number, because 150889985 - 2⁴ = 150889969 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 3 ways as a sum of consecutive naturals, for example, 15088994 + ... + 15089003.

It is an arithmetic number, because the mean of its divisors is an integer number (45266997).

Almost surely, 2^150889985 is an apocalyptic number.

It is an amenable number.

150889985 is a deficient number, since it is larger than the sum of its proper divisors (30178003).

150889985 is an equidigital number, since it uses as much as digits as its factorization.

150889985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30178002.

The product of its (nonzero) digits is 1036800, while the sum is 53.

The square root of 150889985 is about 12283.7284649246. The cubic root of 150889985 is about 532.3780466754.

The spelling of 150889985 in words is "one hundred fifty million, eight hundred eighty-nine thousand, nine hundred eighty-five".