154241393 has 2 divisors, whose sum is σ = 154241394. Its totient is φ = 154241392.

The previous prime is 154241389. The next prime is 154241407. The reversal of 154241393 is 393142451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136025569 + 18215824 = 11663^2 + 4268^2 .

It is a cyclic number.

It is not a de Polignac number, because 154241393 - 2² = 154241389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (154241093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77120696 + 77120697.

It is an arithmetic number, because the mean of its divisors is an integer number (77120697).

Almost surely, 2^154241393 is an apocalyptic number.

It is an amenable number.

154241393 is a deficient number, since it is larger than the sum of its proper divisors (1).

154241393 is an equidigital number, since it uses as much as digits as its factorization.

154241393 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 154241393 is about 12419.3958387677. The cubic root of 154241393 is about 536.2907582360.

The spelling of 154241393 in words is "one hundred fifty-four million, two hundred forty-one thousand, three hundred ninety-three".