1425711 has 8 divisors (see below), whose sum is σ = 2172544. Its totient is φ = 814680.

The previous prime is 1425707. The next prime is 1425733. The reversal of 1425711 is 1175241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1425711 - 2² = 1425707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 67891 = 1425711 / (1 + 4 + 2 + 5 + 7 + 1 + 1).

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33925 + ... + 33966.

It is an arithmetic number, because the mean of its divisors is an integer number (271568).

2^1425711 is an apocalyptic number.

1425711 is a deficient number, since it is larger than the sum of its proper divisors (746833).

1425711 is an equidigital number, since it uses as much as digits as its factorization.

1425711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67901.

The product of its digits is 280, while the sum is 21.

The square root of 1425711 is about 1194.0314066221. The cubic root of 1425711 is about 112.5495682801.

The spelling of 1425711 in words is "one million, four hundred twenty-five thousand, seven hundred eleven".