1431146401 has 2 divisors, whose sum is σ = 1431146402. Its totient is φ = 1431146400.

The previous prime is 1431146267. The next prime is 1431146407. The reversal of 1431146401 is 1046411341.

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., 1231659025 + 199487376 = 35095^2 + 14124^2 .

It is a cyclic number.

It is not a de Polignac number, because 1431146401 - 2²⁷ = 1296928673 is a prime.

It is not a weakly prime, because it can be changed into another prime (1431146407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715573200 + 715573201.

It is an arithmetic number, because the mean of its divisors is an integer number (715573201).

Almost surely, 2^1431146401 is an apocalyptic number.

It is an amenable number.

1431146401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431146401 is an equidigital number, since it uses as much as digits as its factorization.

1431146401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1431146401 is about 37830.4956483523. The cubic root of 1431146401 is about 1126.9241543053.

Adding to 1431146401 its reverse (1046411341), we get a palindrome (2477557742).

The spelling of 1431146401 in words is "one billion, four hundred thirty-one million, one hundred forty-six thousand, four hundred one".