1431369 has 12 divisors (see below), whose sum is σ = 2082756. Its totient is φ = 947232.

The previous prime is 1431361. The next prime is 1431373. The reversal of 1431369 is 9631341.

It can be written as a sum of positive squares in 2 ways, for example, as 131769 + 1299600 = 363^2 + 1140^2 .

It is not a de Polignac number, because 1431369 - 2³ = 1431361 is a prime.

It is a super-2 number, since 2×1431369² = 4097634428322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1431361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 907 + ... + 1919.

It is an arithmetic number, because the mean of its divisors is an integer number (173563).

2^1431369 is an apocalyptic number.

It is an amenable number.

1431369 is a deficient number, since it is larger than the sum of its proper divisors (651387).

1431369 is a wasteful number, since it uses less digits than its factorization.

1431369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1173 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 1431369 is about 1196.3983450340. The cubic root of 1431369 is about 112.6982578141.

The spelling of 1431369 in words is "one million, four hundred thirty-one thousand, three hundred sixty-nine".