331422001 has 2 divisors, whose sum is σ = 331422002. Its totient is φ = 331422000.

The previous prime is 331421977. The next prime is 331422011. The reversal of 331422001 is 100224133.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 317694976 + 13727025 = 17824^2 + 3705^2 .

It is a cyclic number.

It is not a de Polignac number, because 331422001 - 2¹³ = 331413809 is a prime.

It is not a weakly prime, because it can be changed into another prime (331422011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165711000 + 165711001.

It is an arithmetic number, because the mean of its divisors is an integer number (165711001).

Almost surely, 2^331422001 is an apocalyptic number.

It is an amenable number.

331422001 is a deficient number, since it is larger than the sum of its proper divisors (1).

331422001 is an equidigital number, since it uses as much as digits as its factorization.

331422001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 331422001 is about 18204.9993408404. Note that the first 3 decimals coincide. The cubic root of 331422001 is about 692.0334894470.

Adding to 331422001 its reverse (100224133), we get a palindrome (431646134).

The spelling of 331422001 in words is "three hundred thirty-one million, four hundred twenty-two thousand, one".