149112193 has 2 divisors, whose sum is σ = 149112194. Its totient is φ = 149112192.

The previous prime is 149112181. The next prime is 149112217. The reversal of 149112193 is 391211941.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108305649 + 40806544 = 10407^2 + 6388^2 .

It is an emirp because it is prime and its reverse (391211941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149112193 is a prime.

It is a super-2 number, since 2×149112193² = 44468892202538498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149115193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74556096 + 74556097.

It is an arithmetic number, because the mean of its divisors is an integer number (74556097).

Almost surely, 2^149112193 is an apocalyptic number.

It is an amenable number.

149112193 is a deficient number, since it is larger than the sum of its proper divisors (1).

149112193 is an equidigital number, since it uses as much as digits as its factorization.

149112193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 31.

The square root of 149112193 is about 12211.1503553105. The cubic root of 149112193 is about 530.2789477364.

The spelling of 149112193 in words is "one hundred forty-nine million, one hundred twelve thousand, one hundred ninety-three".