150166591 has 2 divisors, whose sum is σ = 150166592. Its totient is φ = 150166590.

The previous prime is 150166589. The next prime is 150166613. The reversal of 150166591 is 195661051.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 150166591 - 2¹ = 150166589 is a prime.

It is a super-2 number, since 2×150166591² = 45100010105122562, which contains 22 as substring.

Together with 150166589, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150166391) 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 as a sum of consecutive naturals, namely, 75083295 + 75083296.

It is an arithmetic number, because the mean of its divisors is an integer number (75083296).

Almost surely, 2^150166591 is an apocalyptic number.

150166591 is a deficient number, since it is larger than the sum of its proper divisors (1).

150166591 is an equidigital number, since it uses as much as digits as its factorization.

150166591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 150166591 is about 12254.2478757368. The cubic root of 150166591 is about 531.5259110996.

The spelling of 150166591 in words is "one hundred fifty million, one hundred sixty-six thousand, five hundred ninety-one".