1430121 has 32 divisors (see below), whose sum is σ = 2451456. Its totient is φ = 720000.

The previous prime is 1430119. The next prime is 1430131. The reversal of 1430121 is 1210341.

1430121 = 9² + 10² + ... + 162².

It is a happy number.

It is not a de Polignac number, because 1430121 - 2¹ = 1430119 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1430097 and 1430106.

It is not an unprimeable number, because it can be changed into a prime (1430131) 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 31 ways as a sum of consecutive naturals, for example, 9396 + ... + 9546.

It is an arithmetic number, because the mean of its divisors is an integer number (76608).

2^1430121 is an apocalyptic number.

1430121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1430121 is a deficient number, since it is larger than the sum of its proper divisors (1021335).

1430121 is a wasteful number, since it uses less digits than its factorization.

1430121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1430121 is about 1195.8766658816. The cubic root of 1430121 is about 112.6654946989.

Adding to 1430121 its reverse (1210341), we get a palindrome (2640462).

It can be divided in two parts, 1430 and 121, that added together give a palindrome (1551).

The spelling of 1430121 in words is "one million, four hundred thirty thousand, one hundred twenty-one".