150087491 has 4 divisors (see below), whose sum is σ = 150235800. Its totient is φ = 149939184.

The previous prime is 150087463. The next prime is 150087521. The reversal of 150087491 is 194780051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 194780051 = 71 ⋅2743381.

It is a cyclic number.

It is not a de Polignac number, because 150087491 - 2¹⁴ = 150071107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150087401) by changing a digit.

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, 72626 + ... + 74663.

It is an arithmetic number, because the mean of its divisors is an integer number (37558950).

Almost surely, 2^150087491 is an apocalyptic number.

150087491 is a deficient number, since it is larger than the sum of its proper divisors (148309).

150087491 is a wasteful number, since it uses less digits than its factorization.

150087491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148308.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 150087491 is about 12251.0199983512. The cubic root of 150087491 is about 531.4325679141.

The spelling of 150087491 in words is "one hundred fifty million, eighty-seven thousand, four hundred ninety-one".