1361397 has 4 divisors (see below), whose sum is σ = 1815200. Its totient is φ = 907596.

The previous prime is 1361389. The next prime is 1361401. The reversal of 1361397 is 7931631.

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 1361397 - 2³ = 1361389 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

1361397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226897 + ... + 226902.

It is an arithmetic number, because the mean of its divisors is an integer number (453800).

2^1361397 is an apocalyptic number.

It is an amenable number.

1361397 is a deficient number, since it is larger than the sum of its proper divisors (453803).

1361397 is an equidigital number, since it uses as much as digits as its factorization.

1361397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453802.

The product of its digits is 3402, while the sum is 30.

The square root of 1361397 is about 1166.7891840431. The cubic root of 1361397 is about 110.8310879502.

The spelling of 1361397 in words is "one million, three hundred sixty-one thousand, three hundred ninety-seven".