1401559 has 2 divisors, whose sum is σ = 1401560. Its totient is φ = 1401558.

The previous prime is 1401529. The next prime is 1401571. The reversal of 1401559 is 9551041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1401559 - 2¹³ = 1393367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700779 + 700780.

It is an arithmetic number, because the mean of its divisors is an integer number (700780).

2^1401559 is an apocalyptic number.

1401559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401559 is an equidigital number, since it uses as much as digits as its factorization.

1401559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1401559 is about 1183.8745710589. The cubic root of 1401559 is about 111.9104034722.

The spelling of 1401559 in words is "one million, four hundred one thousand, five hundred fifty-nine".