150705983 has 4 divisors (see below), whose sum is σ = 150862800. Its totient is φ = 150549168.

The previous prime is 150705941. The next prime is 150706033. The reversal of 150705983 is 389507051.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150705983 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 (150705383) 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, 76958 + ... + 78891.

It is an arithmetic number, because the mean of its divisors is an integer number (37715700).

Almost surely, 2^150705983 is an apocalyptic number.

150705983 is a deficient number, since it is larger than the sum of its proper divisors (156817).

150705983 is an equidigital number, since it uses as much as digits as its factorization.

150705983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156816.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 150705983 is about 12276.2365161315. The cubic root of 150705983 is about 532.1615567811.

The spelling of 150705983 in words is "one hundred fifty million, seven hundred five thousand, nine hundred eighty-three".