148011191 has 2 divisors, whose sum is σ = 148011192. Its totient is φ = 148011190.

The previous prime is 148011181. The next prime is 148011217. The reversal of 148011191 is 191110841.

It is an a-pointer prime, because the next prime (148011217) can be obtained adding 148011191 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-148011191 is a prime.

It is a super-2 number, since 2×148011191² = 43814625322476962, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 148011191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (148011151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74005595 + 74005596.

It is an arithmetic number, because the mean of its divisors is an integer number (74005596).

Almost surely, 2^148011191 is an apocalyptic number.

148011191 is a deficient number, since it is larger than the sum of its proper divisors (1).

148011191 is an equidigital number, since it uses as much as digits as its factorization.

148011191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 26.

The square root of 148011191 is about 12165.9849991688. The cubic root of 148011191 is about 528.9705792770.

The spelling of 148011191 in words is "one hundred forty-eight million, eleven thousand, one hundred ninety-one".