154535243 has 2 divisors, whose sum is σ = 154535244. Its totient is φ = 154535242.

The previous prime is 154535237. The next prime is 154535291. The reversal of 154535243 is 342535451.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154535243 - 2²⁰ = 153486667 is a prime.

It is a super-2 number, since 2×154535243² = 47762282658138098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154535203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77267621 + 77267622.

It is an arithmetic number, because the mean of its divisors is an integer number (77267622).

Almost surely, 2^154535243 is an apocalyptic number.

154535243 is a deficient number, since it is larger than the sum of its proper divisors (1).

154535243 is an equidigital number, since it uses as much as digits as its factorization.

154535243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 32.

The square root of 154535243 is about 12431.2204951887. The cubic root of 154535243 is about 536.6311101699.

The spelling of 154535243 in words is "one hundred fifty-four million, five hundred thirty-five thousand, two hundred forty-three".