123534547 has 2 divisors, whose sum is σ = 123534548. Its totient is φ = 123534546.

The previous prime is 123534539. The next prime is 123534553. The reversal of 123534547 is 745435321.

It is a strong prime.

It is an emirp because it is prime and its reverse (745435321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123534547 - 2³ = 123534539 is a prime.

It is not a weakly prime, because it can be changed into another prime (123534347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61767273 + 61767274.

It is an arithmetic number, because the mean of its divisors is an integer number (61767274).

Almost surely, 2^123534547 is an apocalyptic number.

123534547 is a deficient number, since it is larger than the sum of its proper divisors (1).

123534547 is an equidigital number, since it uses as much as digits as its factorization.

123534547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 34.

The square root of 123534547 is about 11114.6096197752. The cubic root of 123534547 is about 498.0383767999.

Adding to 123534547 its reverse (745435321), we get a palindrome (868969868).

It can be divided in two parts, 12353 and 4547, that added together give a square (16900 = 130²).

The spelling of 123534547 in words is "one hundred twenty-three million, five hundred thirty-four thousand, five hundred forty-seven".