543154987 has 2 divisors, whose sum is σ = 543154988. Its totient is φ = 543154986.

The previous prime is 543154943. The next prime is 543155017. The reversal of 543154987 is 789451345.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 543154987 - 2¹⁵ = 543122219 is a prime.

It is not a weakly prime, because it can be changed into another prime (543154907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271577493 + 271577494.

It is an arithmetic number, because the mean of its divisors is an integer number (271577494).

Almost surely, 2^543154987 is an apocalyptic number.

543154987 is a deficient number, since it is larger than the sum of its proper divisors (1).

543154987 is an equidigital number, since it uses as much as digits as its factorization.

543154987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 46.

The square root of 543154987 is about 23305.6857225871. The cubic root of 543154987 is about 815.9081234463.

The spelling of 543154987 in words is "five hundred forty-three million, one hundred fifty-four thousand, nine hundred eighty-seven".