122506406 has 16 divisors (see below), whose sum is σ = 203005440. Its totient is φ = 54979080.

The previous prime is 122506379. The next prime is 122506409. The reversal of 122506406 is 604605221.

It is a super-2 number, since 2×122506406² = 30015639022073672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122506409) 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, 33506 + ... + 36981.

It is an arithmetic number, because the mean of its divisors is an integer number (12687840).

Almost surely, 2^122506406 is an apocalyptic number.

122506406 is a deficient number, since it is larger than the sum of its proper divisors (80499034).

122506406 is a wasteful number, since it uses less digits than its factorization.

122506406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70579.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 122506406 is about 11068.2612003873. The cubic root of 122506406 is about 496.6528511890.

The spelling of 122506406 in words is "one hundred twenty-two million, five hundred six thousand, four hundred six".