1425431 has 8 divisors (see below), whose sum is σ = 1637280. Its totient is φ = 1215648.

The previous prime is 1425427. The next prime is 1425439. The reversal of 1425431 is 1345241.

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

It is not a de Polignac number, because 1425431 - 2² = 1425427 is a prime.

It is a super-2 number, since 2×1425431² = 4063707071522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1505 + ... + 2261.

It is an arithmetic number, because the mean of its divisors is an integer number (204660).

2^1425431 is an apocalyptic number.

1425431 is a deficient number, since it is larger than the sum of its proper divisors (211849).

1425431 is an equidigital number, since it uses as much as digits as its factorization.

1425431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033.

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

The square root of 1425431 is about 1193.9141510176. The cubic root of 1425431 is about 112.5421998063.

The spelling of 1425431 in words is "one million, four hundred twenty-five thousand, four hundred thirty-one".