149887943 has 2 divisors, whose sum is σ = 149887944. Its totient is φ = 149887942.

The previous prime is 149887931. The next prime is 149887949. The reversal of 149887943 is 349788941.

It is a strong prime.

It is an emirp because it is prime and its reverse (349788941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149887943 - 2⁶ = 149887879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149887949) 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, 74943971 + 74943972.

It is an arithmetic number, because the mean of its divisors is an integer number (74943972).

Almost surely, 2^149887943 is an apocalyptic number.

149887943 is a deficient number, since it is larger than the sum of its proper divisors (1).

149887943 is an equidigital number, since it uses as much as digits as its factorization.

149887943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 53.

The square root of 149887943 is about 12242.8731513481. The cubic root of 149887943 is about 531.1969423736.

The spelling of 149887943 in words is "one hundred forty-nine million, eight hundred eighty-seven thousand, nine hundred forty-three".