150989639 has 4 divisors (see below), whose sum is σ = 151505256. Its totient is φ = 150474024.

The previous prime is 150989627. The next prime is 150989651. The reversal of 150989639 is 936989051.

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

It is an interprime number because it is at equal distance from previous prime (150989627) and next prime (150989651).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150989639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150989939) 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, 257369 + ... + 257954.

It is an arithmetic number, because the mean of its divisors is an integer number (37876314).

Almost surely, 2^150989639 is an apocalyptic number.

150989639 is a deficient number, since it is larger than the sum of its proper divisors (515617).

150989639 is an equidigital number, since it uses as much as digits as its factorization.

150989639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515616.

The product of its (nonzero) digits is 524880, while the sum is 50.

The square root of 150989639 is about 12287.7841371014. The cubic root of 150989639 is about 532.4952223924.

The spelling of 150989639 in words is "one hundred fifty million, nine hundred eighty-nine thousand, six hundred thirty-nine".