122545747 has 4 divisors (see below), whose sum is σ = 124374856. Its totient is φ = 120716640.

The previous prime is 122545733. The next prime is 122545781. The reversal of 122545747 is 747545221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122545747 - 2²³ = 114157139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122546747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 914454 + ... + 914587.

It is an arithmetic number, because the mean of its divisors is an integer number (31093714).

Almost surely, 2^122545747 is an apocalyptic number.

122545747 is a deficient number, since it is larger than the sum of its proper divisors (1829109).

122545747 is an equidigital number, since it uses as much as digits as its factorization.

122545747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829108.

The product of its digits is 78400, while the sum is 37.

The square root of 122545747 is about 11070.0382564831. The cubic root of 122545747 is about 496.7060095755.

The spelling of 122545747 in words is "one hundred twenty-two million, five hundred forty-five thousand, seven hundred forty-seven".