1528913 has 4 divisors (see below), whose sum is σ = 1531968. Its totient is φ = 1525860.

The previous prime is 1528897. The next prime is 1528937. The reversal of 1528913 is 3198251.

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.

It is a cyclic number.

It is not a de Polignac number, because 1528913 - 2⁴ = 1528897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1528993) 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, 581 + ... + 1842.

It is an arithmetic number, because the mean of its divisors is an integer number (382992).

2^1528913 is an apocalyptic number.

It is an amenable number.

1528913 is a deficient number, since it is larger than the sum of its proper divisors (3055).

1528913 is an equidigital number, since it uses as much as digits as its factorization.

1528913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054.

The product of its digits is 2160, while the sum is 29.

The square root of 1528913 is about 1236.4922159076. The cubic root of 1528913 is about 115.2022402230.

The spelling of 1528913 in words is "one million, five hundred twenty-eight thousand, nine hundred thirteen".