1297538 has 8 divisors (see below), whose sum is σ = 2123280. Its totient is φ = 589780.

The previous prime is 1297537. The next prime is 1297561. The reversal of 1297538 is 8357921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1297538² = 3367209722888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1297498 and 1297507.

It is not an unprimeable number, because it can be changed into a prime (1297537) 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, 29468 + ... + 29511.

It is an arithmetic number, because the mean of its divisors is an integer number (265410).

2^1297538 is an apocalyptic number.

1297538 is a deficient number, since it is larger than the sum of its proper divisors (825742).

1297538 is a wasteful number, since it uses less digits than its factorization.

1297538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58992.

The product of its digits is 15120, while the sum is 35.

The square root of 1297538 is about 1139.0952550160. The cubic root of 1297538 is about 109.0703470926.

It can be divided in two parts, 129 and 7538, that added together give a palindrome (7667).

The spelling of 1297538 in words is "one million, two hundred ninety-seven thousand, five hundred thirty-eight".