400150271 has 2 divisors, whose sum is σ = 400150272. Its totient is φ = 400150270.

The previous prime is 400150259. The next prime is 400150273. The reversal of 400150271 is 172051004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400150271 is a prime.

Together with 400150273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400150273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200075135 + 200075136.

It is an arithmetic number, because the mean of its divisors is an integer number (200075136).

Almost surely, 2^400150271 is an apocalyptic number.

400150271 is a deficient number, since it is larger than the sum of its proper divisors (1).

400150271 is an equidigital number, since it uses as much as digits as its factorization.

400150271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 400150271 is about 20003.7564222323. The cubic root of 400150271 is about 736.8985553591.

The spelling of 400150271 in words is "four hundred million, one hundred fifty thousand, two hundred seventy-one".