412138861 has 4 divisors (see below), whose sum is σ = 433830400. Its totient is φ = 390447324.

The previous prime is 412138829. The next prime is 412138873. The reversal of 412138861 is 168831214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 412138861 - 2⁵ = 412138829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412138261) 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, 10845741 + ... + 10845778.

It is an arithmetic number, because the mean of its divisors is an integer number (108457600).

Almost surely, 2^412138861 is an apocalyptic number.

It is an amenable number.

412138861 is a deficient number, since it is larger than the sum of its proper divisors (21691539).

412138861 is a wasteful number, since it uses less digits than its factorization.

412138861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21691538.

The product of its digits is 9216, while the sum is 34.

The square root of 412138861 is about 20301.2034372349. The cubic root of 412138861 is about 744.1854743631.

The spelling of 412138861 in words is "four hundred twelve million, one hundred thirty-eight thousand, eight hundred sixty-one".