150451987 has 4 divisors (see below), whose sum is σ = 171945136. Its totient is φ = 128958840.

The previous prime is 150451979. The next prime is 150451991. The reversal of 150451987 is 789154051.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 150451987 - 2³ = 150451979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150451907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10746564 + ... + 10746577.

It is an arithmetic number, because the mean of its divisors is an integer number (42986284).

Almost surely, 2^150451987 is an apocalyptic number.

150451987 is a deficient number, since it is larger than the sum of its proper divisors (21493149).

150451987 is an equidigital number, since it uses as much as digits as its factorization.

150451987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21493148.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 150451987 is about 12265.8871264984. The cubic root of 150451987 is about 531.8624248535.

The spelling of 150451987 in words is "one hundred fifty million, four hundred fifty-one thousand, nine hundred eighty-seven".