1430625 has 40 divisors (see below), whose sum is σ = 2749120. Its totient is φ = 648000.

The previous prime is 1430617. The next prime is 1430641. The reversal of 1430625 is 5260341.

It is a happy number.

It is not a de Polignac number, because 1430625 - 2³ = 1430617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13071 + ... + 13179.

It is an arithmetic number, because the mean of its divisors is an integer number (68728).

2^1430625 is an apocalyptic number.

1430625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1430625 is a deficient number, since it is larger than the sum of its proper divisors (1318495).

1430625 is an equidigital number, since it uses as much as digits as its factorization.

1430625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1430625 is about 1196.0873713906. The cubic root of 1430625 is about 112.6787282505.

Adding to 1430625 its reverse (5260341), we get a palindrome (6690966).

The spelling of 1430625 in words is "one million, four hundred thirty thousand, six hundred twenty-five".