149695211 has 2 divisors, whose sum is σ = 149695212. Its totient is φ = 149695210.

The previous prime is 149695199. The next prime is 149695289. The reversal of 149695211 is 112596941.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149695211 is a prime.

It is not a weakly prime, because it can be changed into another prime (149695291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74847605 + 74847606.

It is an arithmetic number, because the mean of its divisors is an integer number (74847606).

Almost surely, 2^149695211 is an apocalyptic number.

149695211 is a deficient number, since it is larger than the sum of its proper divisors (1).

149695211 is an equidigital number, since it uses as much as digits as its factorization.

149695211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 38.

The square root of 149695211 is about 12234.9994278708. Note that the first 3 decimals coincide. The cubic root of 149695211 is about 530.9691665225.

The spelling of 149695211 in words is "one hundred forty-nine million, six hundred ninety-five thousand, two hundred eleven".