1328251 has 4 divisors (see below), whose sum is σ = 1341504. Its totient is φ = 1315000.

The previous prime is 1328237. The next prime is 1328269. The reversal of 1328251 is 1528231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1528231 = 101 ⋅15131.

It is a cyclic number.

It is not a de Polignac number, because 1328251 - 2⁵ = 1328219 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1328231) 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, 6475 + ... + 6676.

It is an arithmetic number, because the mean of its divisors is an integer number (335376).

2^1328251 is an apocalyptic number.

1328251 is a deficient number, since it is larger than the sum of its proper divisors (13253).

1328251 is a wasteful number, since it uses less digits than its factorization.

1328251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13252.

The product of its digits is 480, while the sum is 22.

The square root of 1328251 is about 1152.4977223405. The cubic root of 1328251 is about 109.9242177758.

The spelling of 1328251 in words is "one million, three hundred twenty-eight thousand, two hundred fifty-one".