1526401 has 2 divisors, whose sum is σ = 1526402. Its totient is φ = 1526400.

The previous prime is 1526387. The next prime is 1526411. The reversal of 1526401 is 1046251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1476225 + 50176 = 1215^2 + 224^2 .

It is a cyclic number.

It is not a de Polignac number, because 1526401 - 2¹⁵ = 1493633 is a prime.

It is not a weakly prime, because it can be changed into another prime (1526411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 763200 + 763201.

It is an arithmetic number, because the mean of its divisors is an integer number (763201).

2^1526401 is an apocalyptic number.

It is an amenable number.

1526401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1526401 is an equidigital number, since it uses as much as digits as its factorization.

1526401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1526401 is about 1235.4760216208. The cubic root of 1526401 is about 115.1391133129.

The spelling of 1526401 in words is "one million, five hundred twenty-six thousand, four hundred one".