412505121 has 16 divisors (see below), whose sum is σ = 635644800. Its totient is φ = 233067648.

The previous prime is 412505111. The next prime is 412505173. The reversal of 412505121 is 121505214.

It is not a de Polignac number, because 412505121 - 2⁷ = 412504993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (412505111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108486 + ... + 112223.

It is an arithmetic number, because the mean of its divisors is an integer number (39727800).

Almost surely, 2^412505121 is an apocalyptic number.

It is an amenable number.

412505121 is a deficient number, since it is larger than the sum of its proper divisors (223139679).

412505121 is a wasteful number, since it uses less digits than its factorization.

412505121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220808.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 412505121 is about 20310.2220815037. Note that the first 3 decimals coincide. The cubic root of 412505121 is about 744.4058569382.

The spelling of 412505121 in words is "four hundred twelve million, five hundred five thousand, one hundred twenty-one".