1431149 has 2 divisors, whose sum is σ = 1431150. Its totient is φ = 1431148.

The previous prime is 1431139. The next prime is 1431161. The reversal of 1431149 is 9411341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1188100 + 243049 = 1090^2 + 493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1431149 is a prime.

It is a Chen prime.

It is equal to p₁₀₉₂₈₃ and since 1431149 and 109283 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1431119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715574 + 715575.

It is an arithmetic number, because the mean of its divisors is an integer number (715575).

2^1431149 is an apocalyptic number.

It is an amenable number.

1431149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431149 is an equidigital number, since it uses as much as digits as its factorization.

1431149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 23.

The square root of 1431149 is about 1196.3063988795. The cubic root of 1431149 is about 112.6924836480.

The spelling of 1431149 in words is "one million, four hundred thirty-one thousand, one hundred forty-nine".