122471561 has 8 divisors (see below), whose sum is σ = 124354560. Its totient is φ = 120603168.

The previous prime is 122471539. The next prime is 122471581. The reversal of 122471561 is 165174221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122471561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122471501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13880 + ... + 20918.

It is an arithmetic number, because the mean of its divisors is an integer number (15544320).

Almost surely, 2^122471561 is an apocalyptic number.

It is an amenable number.

122471561 is a deficient number, since it is larger than the sum of its proper divisors (1882999).

122471561 is a wasteful number, since it uses less digits than its factorization.

122471561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7303.

The product of its digits is 3360, while the sum is 29.

The square root of 122471561 is about 11066.6869929532. The cubic root of 122471561 is about 496.6057583873.

The spelling of 122471561 in words is "one hundred twenty-two million, four hundred seventy-one thousand, five hundred sixty-one".