149886923 has 2 divisors, whose sum is σ = 149886924. Its totient is φ = 149886922.

The previous prime is 149886911. The next prime is 149886931. The reversal of 149886923 is 329688941.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (329688941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149886923 - 2⁴ = 149886907 is a prime.

It is not a weakly prime, because it can be changed into another prime (149886523) 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, 74943461 + 74943462.

It is an arithmetic number, because the mean of its divisors is an integer number (74943462).

Almost surely, 2^149886923 is an apocalyptic number.

149886923 is a deficient number, since it is larger than the sum of its proper divisors (1).

149886923 is an equidigital number, since it uses as much as digits as its factorization.

149886923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 50.

The square root of 149886923 is about 12242.8314943889. The cubic root of 149886923 is about 531.1957374243.

The spelling of 149886923 in words is "one hundred forty-nine million, eight hundred eighty-six thousand, nine hundred twenty-three".