150542591 has 2 divisors, whose sum is σ = 150542592. Its totient is φ = 150542590.

The previous prime is 150542573. The next prime is 150542593. The reversal of 150542591 is 195245051.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150542591 is a prime.

Together with 150542593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150542593) 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, 75271295 + 75271296.

It is an arithmetic number, because the mean of its divisors is an integer number (75271296).

Almost surely, 2^150542591 is an apocalyptic number.

150542591 is a deficient number, since it is larger than the sum of its proper divisors (1).

150542591 is an equidigital number, since it uses as much as digits as its factorization.

150542591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 150542591 is about 12269.5799031589. The cubic root of 150542591 is about 531.9691680833.

The spelling of 150542591 in words is "one hundred fifty million, five hundred forty-two thousand, five hundred ninety-one".