122908547 has 2 divisors, whose sum is σ = 122908548. Its totient is φ = 122908546.

The previous prime is 122908543. The next prime is 122908559. The reversal of 122908547 is 745809221.

It is a weak prime.

It is an emirp because it is prime and its reverse (745809221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122908547 - 2² = 122908543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122908547.

It is not a weakly prime, because it can be changed into another prime (122908543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61454273 + 61454274.

It is an arithmetic number, because the mean of its divisors is an integer number (61454274).

Almost surely, 2^122908547 is an apocalyptic number.

122908547 is a deficient number, since it is larger than the sum of its proper divisors (1).

122908547 is an equidigital number, since it uses as much as digits as its factorization.

122908547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 122908547 is about 11086.4127200822. The cubic root of 122908547 is about 497.1956971758.

The spelling of 122908547 in words is "one hundred twenty-two million, nine hundred eight thousand, five hundred forty-seven".