1526641 has 2 divisors, whose sum is σ = 1526642. Its totient is φ = 1526640.

The previous prime is 1526639. The next prime is 1526653. The reversal of 1526641 is 1466251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 893025 + 633616 = 945^2 + 796^2 .

It is an emirp because it is prime and its reverse (1466251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1526641 - 2¹ = 1526639 is a prime.

Together with 1526639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1526611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 763320 + 763321.

It is an arithmetic number, because the mean of its divisors is an integer number (763321).

2^1526641 is an apocalyptic number.

It is an amenable number.

1526641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1526641 is an equidigital number, since it uses as much as digits as its factorization.

1526641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 25.

The square root of 1526641 is about 1235.5731463576. The cubic root of 1526641 is about 115.1451475375.

The spelling of 1526641 in words is "one million, five hundred twenty-six thousand, six hundred forty-one".