149152193 has 4 divisors (see below), whose sum is σ = 149253588. Its totient is φ = 149050800.

The previous prime is 149152183. The next prime is 149152207. The reversal of 149152193 is 391251941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 391251941 = 2347 ⋅166703.

It can be written as a sum of positive squares in 2 ways, for example, as 138956944 + 10195249 = 11788^2 + 3193^2 .

It is a cyclic number.

It is not a de Polignac number, because 149152193 - 2¹⁴ = 149135809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149152153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48458 + ... + 51443.

It is an arithmetic number, because the mean of its divisors is an integer number (37313397).

Almost surely, 2^149152193 is an apocalyptic number.

It is an amenable number.

149152193 is a deficient number, since it is larger than the sum of its proper divisors (101395).

149152193 is an equidigital number, since it uses as much as digits as its factorization.

149152193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101394.

The product of its digits is 9720, while the sum is 35.

The square root of 149152193 is about 12212.7880928148. The cubic root of 149152193 is about 530.3263600486.

The spelling of 149152193 in words is "one hundred forty-nine million, one hundred fifty-two thousand, one hundred ninety-three".