406075001 has 2 divisors, whose sum is σ = 406075002. Its totient is φ = 406075000.

The previous prime is 406074961. The next prime is 406075003. The reversal of 406075001 is 100570604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 377291776 + 28783225 = 19424^2 + 5365^2 .

It is a cyclic number.

It is not a de Polignac number, because 406075001 - 2¹⁸ = 405812857 is a prime.

Together with 406075003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (406075003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203037500 + 203037501.

It is an arithmetic number, because the mean of its divisors is an integer number (203037501).

Almost surely, 2^406075001 is an apocalyptic number.

It is an amenable number.

406075001 is a deficient number, since it is larger than the sum of its proper divisors (1).

406075001 is an equidigital number, since it uses as much as digits as its factorization.

406075001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 406075001 is about 20151.3027122318. The cubic root of 406075001 is about 740.5176564231.

The spelling of 406075001 in words is "four hundred six million, seventy-five thousand, one".