1306497 has 8 divisors (see below), whose sum is σ = 1833760. Its totient is φ = 825120.

The previous prime is 1306489. The next prime is 1306499. The reversal of 1306497 is 7946031.

It is a happy number.

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

It is not a de Polignac number, because 1306497 - 2³ = 1306489 is a prime.

It is a super-2 number, since 2×1306497² = 3413868822018, which contains 22 as substring.

It is a Duffinian number.

1306497 is a lucky number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (1306499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11404 + ... + 11517.

It is an arithmetic number, because the mean of its divisors is an integer number (229220).

2^1306497 is an apocalyptic number.

It is an amenable number.

1306497 is a deficient number, since it is larger than the sum of its proper divisors (527263).

1306497 is a wasteful number, since it uses less digits than its factorization.

1306497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22943.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 1306497 is about 1143.0209971825. The cubic root of 1306497 is about 109.3208011199.

The spelling of 1306497 in words is "one million, three hundred six thousand, four hundred ninety-seven".