1330057 has 4 divisors (see below), whose sum is σ = 1400080. Its totient is φ = 1260036.

The previous prime is 1330031. The next prime is 1330061. The reversal of 1330057 is 7500331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7500331 = 97 ⋅77323.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1330057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 70003 = 1330057 / (1 + 3 + 3 + 0 + 0 + 5 + 7).

It is a Duffinian number.

1330057 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1330157) 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, 34983 + ... + 35020.

It is an arithmetic number, because the mean of its divisors is an integer number (350020).

2^1330057 is an apocalyptic number.

It is an amenable number.

1330057 is a deficient number, since it is larger than the sum of its proper divisors (70023).

1330057 is an equidigital number, since it uses as much as digits as its factorization.

1330057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70022.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 1330057 is about 1153.2809718364. The cubic root of 1330057 is about 109.9740159011.

Adding to 1330057 its reverse (7500331), we get a palindrome (8830388).

The spelling of 1330057 in words is "one million, three hundred thirty thousand, fifty-seven".