1431297 has 16 divisors (see below), whose sum is σ = 2423680. Its totient is φ = 817776.

The previous prime is 1431277. The next prime is 1431307. The reversal of 1431297 is 7921341.

It is not a de Polignac number, because 1431297 - 2¹¹ = 1429249 is a prime.

It is a super-2 number, since 2×1431297² = 4097222204418, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1431297.

It is not an unprimeable number, because it can be changed into a prime (1431217) 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, 3598 + ... + 3975.

It is an arithmetic number, because the mean of its divisors is an integer number (151480).

2^1431297 is an apocalyptic number.

It is an amenable number.

1431297 is a deficient number, since it is larger than the sum of its proper divisors (992383).

1431297 is an equidigital number, since it uses as much as digits as its factorization.

1431297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7589 (or 7583 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 1431297 is about 1196.3682543431. The cubic root of 1431297 is about 112.6963681521.

Adding to 1431297 its product of digits (1512), we get a square (1432809 = 1197²).

It can be divided in two parts, 1431 and 297, that added together give a cube (1728 = 12³).

The spelling of 1431297 in words is "one million, four hundred thirty-one thousand, two hundred ninety-seven".