122445406 has 4 divisors (see below), whose sum is σ = 183668112. Its totient is φ = 61222702.

The previous prime is 122445383. The next prime is 122445413. The reversal of 122445406 is 604544221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30611350 + ... + 30611353.

It is an arithmetic number, because the mean of its divisors is an integer number (45917028).

Almost surely, 2^122445406 is an apocalyptic number.

122445406 is a deficient number, since it is larger than the sum of its proper divisors (61222706).

122445406 is an equidigital number, since it uses as much as digits as its factorization.

122445406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61222705.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 122445406 is about 11065.5052302188. The cubic root of 122445406 is about 496.5704041977.

Adding to 122445406 its reverse (604544221), we get a palindrome (726989627).

The spelling of 122445406 in words is "one hundred twenty-two million, four hundred forty-five thousand, four hundred six".