150993081 has 24 divisors (see below), whose sum is σ = 225441216. Its totient is φ = 97322400.

The previous prime is 150993079. The next prime is 150993083. The reversal of 150993081 is 180399051.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (150993079) and next prime (150993083).

It is not a de Polignac number, because 150993081 - 2¹ = 150993079 is a prime.

It is a super-2 number, since 2×150993081² = 45597821019745122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (150993083) 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 23 ways as a sum of consecutive naturals, for example, 37156 + ... + 41018.

It is an arithmetic number, because the mean of its divisors is an integer number (9393384).

Almost surely, 2^150993081 is an apocalyptic number.

It is an amenable number.

150993081 is a deficient number, since it is larger than the sum of its proper divisors (74448135).

150993081 is a wasteful number, since it uses less digits than its factorization.

150993081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4013 (or 4010 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 150993081 is about 12287.9241941021. The cubic root of 150993081 is about 532.4992686626.

The spelling of 150993081 in words is "one hundred fifty million, nine hundred ninety-three thousand, eighty-one".