412540421 has 2 divisors, whose sum is σ = 412540422. Its totient is φ = 412540420.

The previous prime is 412540357. The next prime is 412540433. The reversal of 412540421 is 124045214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237930625 + 174609796 = 15425^2 + 13214^2 .

It is a cyclic number.

It is not a de Polignac number, because 412540421 - 2⁶ = 412540357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412540451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206270210 + 206270211.

It is an arithmetic number, because the mean of its divisors is an integer number (206270211).

Almost surely, 2^412540421 is an apocalyptic number.

It is an amenable number.

412540421 is a deficient number, since it is larger than the sum of its proper divisors (1).

412540421 is an equidigital number, since it uses as much as digits as its factorization.

412540421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 412540421 is about 20311.0910834450. The cubic root of 412540421 is about 744.4270904340.

Adding to 412540421 its reverse (124045214), we get a palindrome (536585635).

The spelling of 412540421 in words is "four hundred twelve million, five hundred forty thousand, four hundred twenty-one".