149944867 has 2 divisors, whose sum is σ = 149944868. Its totient is φ = 149944866.

The previous prime is 149944853. The next prime is 149944919. The reversal of 149944867 is 768449941.

It is an a-pointer prime, because the next prime (149944919) can be obtained adding 149944867 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149944867 - 2¹⁵ = 149912099 is a prime.

It is not a weakly prime, because it can be changed into another prime (149944807) 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, 74972433 + 74972434.

It is an arithmetic number, because the mean of its divisors is an integer number (74972434).

Almost surely, 2^149944867 is an apocalyptic number.

149944867 is a deficient number, since it is larger than the sum of its proper divisors (1).

149944867 is an equidigital number, since it uses as much as digits as its factorization.

149944867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 52.

The square root of 149944867 is about 12245.1977117562. The cubic root of 149944867 is about 531.2641793309.

The spelling of 149944867 in words is "one hundred forty-nine million, nine hundred forty-four thousand, eight hundred sixty-seven".