1523441 has 2 divisors, whose sum is σ = 1523442. Its totient is φ = 1523440.

The previous prime is 1523429. The next prime is 1523443. The reversal of 1523441 is 1443251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1430416 + 93025 = 1196^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 1523441 - 2⁶ = 1523377 is a prime.

Together with 1523443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1523443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761720 + 761721.

It is an arithmetic number, because the mean of its divisors is an integer number (761721).

2^1523441 is an apocalyptic number.

It is an amenable number.

1523441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523441 is an equidigital number, since it uses as much as digits as its factorization.

1523441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 20.

The square root of 1523441 is about 1234.2775214675. The cubic root of 1523441 is about 115.0646391492.

Adding to 1523441 its reverse (1443251), we get a palindrome (2966692).

The spelling of 1523441 in words is "one million, five hundred twenty-three thousand, four hundred forty-one".