412178681 has 2 divisors, whose sum is σ = 412178682. Its totient is φ = 412178680.

The previous prime is 412178633. The next prime is 412178729. The reversal of 412178681 is 186871214.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (412178633) and next prime (412178729).

It can be written as a sum of positive squares in only one way, i.e., 217297081 + 194881600 = 14741^2 + 13960^2 .

It is a cyclic number.

It is not a de Polignac number, because 412178681 - 2¹⁸ = 411916537 is a prime.

It is a super-2 number, since 2×412178681² = 339782530141799522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (412175681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206089340 + 206089341.

It is an arithmetic number, because the mean of its divisors is an integer number (206089341).

Almost surely, 2^412178681 is an apocalyptic number.

It is an amenable number.

412178681 is a deficient number, since it is larger than the sum of its proper divisors (1).

412178681 is an equidigital number, since it uses as much as digits as its factorization.

412178681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 38.

The square root of 412178681 is about 20302.1841435842. The cubic root of 412178681 is about 744.2094408091.

The spelling of 412178681 in words is "four hundred twelve million, one hundred seventy-eight thousand, six hundred eighty-one".