1453997 has 2 divisors, whose sum is σ = 1453998. Its totient is φ = 1453996.

The previous prime is 1453961. The next prime is 1454003. The reversal of 1453997 is 7993541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 885481 + 568516 = 941^2 + 754^2 .

It is a cyclic number.

It is not a de Polignac number, because 1453997 - 2¹⁴ = 1437613 is a prime.

It is a super-2 number, since 2×1453997² = 4228214552018, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1453997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1453927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726998 + 726999.

It is an arithmetic number, because the mean of its divisors is an integer number (726999).

2^1453997 is an apocalyptic number.

It is an amenable number.

1453997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1453997 is an equidigital number, since it uses as much as digits as its factorization.

1453997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 38.

The square root of 1453997 is about 1205.8179796304. The cubic root of 1453997 is about 113.2890243939.

The spelling of 1453997 in words is "one million, four hundred fifty-three thousand, nine hundred ninety-seven".