154243361 has 2 divisors, whose sum is σ = 154243362. Its totient is φ = 154243360.

The previous prime is 154243301. The next prime is 154243381. The reversal of 154243361 is 163342451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111091600 + 43151761 = 10540^2 + 6569^2 .

It is an emirp because it is prime and its reverse (163342451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154243361 - 2¹⁰ = 154242337 is a prime.

It is not a weakly prime, because it can be changed into another prime (154243301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77121680 + 77121681.

It is an arithmetic number, because the mean of its divisors is an integer number (77121681).

Almost surely, 2^154243361 is an apocalyptic number.

It is an amenable number.

154243361 is a deficient number, since it is larger than the sum of its proper divisors (1).

154243361 is an equidigital number, since it uses as much as digits as its factorization.

154243361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 154243361 is about 12419.4750694222. The cubic root of 154243361 is about 536.2930391104.

The spelling of 154243361 in words is "one hundred fifty-four million, two hundred forty-three thousand, three hundred sixty-one".