1380297 has 4 divisors (see below), whose sum is σ = 1840400. Its totient is φ = 920196.

The previous prime is 1380289. The next prime is 1380307. The reversal of 1380297 is 7920831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1380297 - 2³ = 1380289 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

1380297 is a modest number, since divided by 297 gives 138 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1380227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230047 + ... + 230052.

It is an arithmetic number, because the mean of its divisors is an integer number (460100).

2^1380297 is an apocalyptic number.

It is an amenable number.

1380297 is a deficient number, since it is larger than the sum of its proper divisors (460103).

1380297 is an equidigital number, since it uses as much as digits as its factorization.

1380297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460102.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1380297 is about 1174.8604172411. The cubic root of 1380297 is about 111.3416145569.

The spelling of 1380297 in words is "one million, three hundred eighty thousand, two hundred ninety-seven".