149945111 has 2 divisors, whose sum is σ = 149945112. Its totient is φ = 149945110.

The previous prime is 149945099. The next prime is 149945143. The reversal of 149945111 is 111549941.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149945111 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149945611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74972555 + 74972556.

It is an arithmetic number, because the mean of its divisors is an integer number (74972556).

Almost surely, 2^149945111 is an apocalyptic number.

149945111 is a deficient number, since it is larger than the sum of its proper divisors (1).

149945111 is an equidigital number, since it uses as much as digits as its factorization.

149945111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 35.

The square root of 149945111 is about 12245.2076748416. The cubic root of 149945111 is about 531.2644674999.

The spelling of 149945111 in words is "one hundred forty-nine million, nine hundred forty-five thousand, one hundred eleven".