400150193 has 2 divisors, whose sum is σ = 400150194. Its totient is φ = 400150192.

The previous prime is 400150189. The next prime is 400150243. The reversal of 400150193 is 391051004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296252944 + 103897249 = 17212^2 + 10193^2 .

It is a cyclic number.

It is not a de Polignac number, because 400150193 - 2² = 400150189 is a prime.

It is not a weakly prime, because it can be changed into another prime (400150133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200075096 + 200075097.

It is an arithmetic number, because the mean of its divisors is an integer number (200075097).

Almost surely, 2^400150193 is an apocalyptic number.

It is an amenable number.

400150193 is a deficient number, since it is larger than the sum of its proper divisors (1).

400150193 is an equidigital number, since it uses as much as digits as its factorization.

400150193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 400150193 is about 20003.7544725984. The cubic root of 400150193 is about 736.8985074787.

The spelling of 400150193 in words is "four hundred million, one hundred fifty thousand, one hundred ninety-three".