154342193 has 2 divisors, whose sum is σ = 154342194. Its totient is φ = 154342192.

The previous prime is 154342189. The next prime is 154342231. The reversal of 154342193 is 391243451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93064609 + 61277584 = 9647^2 + 7828^2 .

It is an emirp because it is prime and its reverse (391243451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154342193 - 2² = 154342189 is a prime.

It is not a weakly prime, because it can be changed into another prime (154342493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77171096 + 77171097.

It is an arithmetic number, because the mean of its divisors is an integer number (77171097).

Almost surely, 2^154342193 is an apocalyptic number.

It is an amenable number.

154342193 is a deficient number, since it is larger than the sum of its proper divisors (1).

154342193 is an equidigital number, since it uses as much as digits as its factorization.

154342193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 154342193 is about 12423.4533443805. The cubic root of 154342193 is about 536.4075585657.

The spelling of 154342193 in words is "one hundred fifty-four million, three hundred forty-two thousand, one hundred ninety-three".