1431265 has 16 divisors (see below), whose sum is σ = 1912896. Its totient is φ = 1019200.

The previous prime is 1431263. The next prime is 1431277. The reversal of 1431265 is 5621341.

It is not a de Polignac number, because 1431265 - 2¹ = 1431263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2670 + ... + 3160.

It is an arithmetic number, because the mean of its divisors is an integer number (119556).

2^1431265 is an apocalyptic number.

It is an amenable number.

1431265 is a deficient number, since it is larger than the sum of its proper divisors (481631).

1431265 is a wasteful number, since it uses less digits than its factorization.

1431265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560.

The product of its digits is 720, while the sum is 22.

The square root of 1431265 is about 1196.3548804598. The cubic root of 1431265 is about 112.6955282820.

The spelling of 1431265 in words is "one million, four hundred thirty-one thousand, two hundred sixty-five".