149550487 has 2 divisors, whose sum is σ = 149550488. Its totient is φ = 149550486.

The previous prime is 149550473. The next prime is 149550521. The reversal of 149550487 is 784055941.

It is a weak prime.

It is an emirp because it is prime and its reverse (784055941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149550487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149550437) 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, 74775243 + 74775244.

It is an arithmetic number, because the mean of its divisors is an integer number (74775244).

Almost surely, 2^149550487 is an apocalyptic number.

149550487 is a deficient number, since it is larger than the sum of its proper divisors (1).

149550487 is an equidigital number, since it uses as much as digits as its factorization.

149550487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 149550487 is about 12229.0836533242. The cubic root of 149550487 is about 530.7979992588.

The spelling of 149550487 in words is "one hundred forty-nine million, five hundred fifty thousand, four hundred eighty-seven".