149909941 has 2 divisors, whose sum is σ = 149909942. Its totient is φ = 149909940.

The previous prime is 149909891. The next prime is 149909951.

149909941 is nontrivially palindromic in base 10.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121330225 + 28579716 = 11015^2 + 5346^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 149909941 - 2⁷ = 149909813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149909891 and 149909900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149909951) 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, 74954970 + 74954971.

It is an arithmetic number, because the mean of its divisors is an integer number (74954971).

Almost surely, 2^149909941 is an apocalyptic number.

It is an amenable number.

149909941 is a deficient number, since it is larger than the sum of its proper divisors (1).

149909941 is an equidigital number, since it uses as much as digits as its factorization.

149909941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 46.

The square root of 149909941 is about 12243.7715186130. The cubic root of 149909941 is about 531.2229277831. Note that the first 3 decimals are identical.

The spelling of 149909941 in words is "one hundred forty-nine million, nine hundred nine thousand, nine hundred forty-one".